Author: philip
Date: Wed Mar 28 07:42:50 2018
New Revision: 331662
URL: https://svnweb.freebsd.org/changeset/base/331662

Log:
  MFC r331481: Import tzdata 2018d

Added:
  stable/11/contrib/tzdata/ziguard.awk
     - copied unchanged from r331481, head/contrib/tzdata/ziguard.awk
Modified:
  stable/11/contrib/tzdata/CONTRIBUTING
  stable/11/contrib/tzdata/Makefile
  stable/11/contrib/tzdata/NEWS
  stable/11/contrib/tzdata/africa
  stable/11/contrib/tzdata/antarctica
  stable/11/contrib/tzdata/asia
  stable/11/contrib/tzdata/australasia
  stable/11/contrib/tzdata/backzone
  stable/11/contrib/tzdata/checktab.awk
  stable/11/contrib/tzdata/europe
  stable/11/contrib/tzdata/northamerica
  stable/11/contrib/tzdata/southamerica
  stable/11/contrib/tzdata/theory.html
  stable/11/contrib/tzdata/version
  stable/11/contrib/tzdata/zishrink.awk
  stable/11/contrib/tzdata/zone.tab
  stable/11/contrib/tzdata/zone1970.tab
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/contrib/tzdata/CONTRIBUTING
==============================================================================
--- stable/11/contrib/tzdata/CONTRIBUTING       Wed Mar 28 05:58:08 2018        
(r331661)
+++ stable/11/contrib/tzdata/CONTRIBUTING       Wed Mar 28 07:42:50 2018        
(r331662)
@@ -25,7 +25,8 @@ justification.  Citations should use https: URLs if av
 
 Please submit changes against either the latest release in
 <https://www.iana.org/time-zones> or the master branch of the development
-repository.  If you use Git the following workflow may be helpful:
+repository.  The latter is preferred.  If you use Git the following
+workflow may be helpful:
 
   * Copy the development repository.
 
@@ -42,6 +43,12 @@ repository.  If you use Git the following workflow may
 
       git checkout -b mybranch
 
+  * Sleuth by using 'git blame'.  For example, when fixing data for
+    Africa/Sao_Tome, if the command 'git blame africa' outputs a line
+    '2951fa3b (Paul Eggert 2018-01-08 09:03:13 -0800 1068) Zone
+    Africa/Sao_Tome 0:26:56 - LMT 1884', commit 2951fa3b should
+    provide some justification for the 'Zone Africa/Sao_Tome' line.
+
   * Edit source files.  Include commentary that justifies the
     changes by citing reliable sources.
 
@@ -66,6 +73,9 @@ repository.  If you use Git the following workflow may
     for others to review.
 
       git send-email master
+
+    For an archived example of such an email, see
+    <https://mm.icann.org/pipermail/tz/2018-February/026122.html>.
 
   * Start anew by getting current with the master branch again
     (the second step above).

Modified: stable/11/contrib/tzdata/Makefile
==============================================================================
--- stable/11/contrib/tzdata/Makefile   Wed Mar 28 05:58:08 2018        
(r331661)
+++ stable/11/contrib/tzdata/Makefile   Wed Mar 28 07:42:50 2018        
(r331662)
@@ -10,6 +10,15 @@ VERSION=     unknown
 # Email address for bug reports.
 BUGEMAIL=      t...@iana.org
 
+# Choose source data features.  To get new features right away, use:
+#      DATAFORM=       vanguard
+# To wait a while before using new features, to give downstream users
+# time to upgrade zic (the default), use:
+#      DATAFORM=       main
+# To wait even longer for new features, use:
+#      DATAFORM=       rearguard
+DATAFORM=              main
+
 # Change the line below for your time zone (after finding the zone you want in
 # the time zone files, or adding it to a time zone file).
 # Alternately, if you discover you've got the wrong time zone, you can just
@@ -25,10 +34,10 @@ LOCALTIME=  GMT
 # for handling POSIX-style time zone environment variables,
 # change the line below (after finding the zone you want in the
 # time zone files, or adding it to a time zone file).
-# (When a POSIX-style environment variable is handled, the rules in the
+# When a POSIX-style environment variable is handled, the rules in the
 # template file are used to determine "spring forward" and "fall back" days and
 # times; the environment variable itself specifies UT offsets of standard and
-# summer time.)
+# daylight saving time.
 # Alternately, if you discover you've got the wrong time zone, you can just
 #      zic -p rightzone
 # to correct things.
@@ -189,13 +198,18 @@ LDLIBS=
 #  -DHAVE_STDINT_H if you have a non-C99 compiler with <stdint.h>
 #  -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
 #  -DHAVE_STRDUP=0 if your system lacks the strdup function
+#  -DHAVE_STRTOLL=0 if your system lacks the strtoll function
 #  -DHAVE_SYMLINK=0 if your system lacks the symlink function
 #  -DHAVE_SYS_STAT_H=0 if your compiler lacks a <sys/stat.h>
 #  -DHAVE_SYS_WAIT_H=0 if your compiler lacks a <sys/wait.h>
 #  -DHAVE_TZSET=0 if your system lacks a tzset function
 #  -DHAVE_UNISTD_H=0 if your compiler lacks a <unistd.h>
 #  -Dlocale_t=XXX if your system uses XXX instead of locale_t
+#  -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers
+#      with external linkage, e.g., applications cannot define 'localtime'.
 #  -Dssize_t=long on hosts like MS-Windows that lack ssize_t
+#  -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has
+#      security implications and is not recommended for general use
 #  -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
 #      not needed by the main-program tz code, which is single-threaded.
 #      Append other compiler flags as needed, e.g., -pthread on GNU/Linux.
@@ -394,13 +408,19 @@ SAFE_CHARSET3=    'abcdefghijklmnopqrstuvwxyz{|}~'
 SAFE_CHARSET=  $(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3)
 SAFE_CHAR=     '[]'$(SAFE_CHARSET)'-]'
 
+# Non-ASCII non-letters that OK_CHAR allows, as these characters are
+# useful in commentary.  XEmacs 21.5.34 displays them correctly,
+# presumably because they are Latin-1.
+UNUSUAL_OK_CHARSET= °±½¾×
+
 # OK_CHAR matches any character allowed in the distributed files.
-# This is the same as SAFE_CHAR, except that multibyte letters are
-# also allowed so that commentary can contain people's names and quote
-# non-English sources.  For non-letters the sources are limited to
-# ASCII renderings for the convenience of maintainers whose text editors
-# mishandle UTF-8 by default (e.g., XEmacs 21.4.22).
-OK_CHAR=       '[][:alpha:]'$(SAFE_CHARSET)'-]'
+# This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and
+# multibyte letters are also allowed so that commentary can contain a
+# few safe symbols and people's names and can quote non-English sources.
+# Other non-letters are limited to ASCII renderings for the
+# convenience of maintainers using XEmacs 21.5.34, which by default
+# mishandles Unicode characters U+0100 and greater.
+OK_CHAR=       '[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]'
 
 # SAFE_LINE matches a line of safe characters.
 # SAFE_SHARP_LINE is similar, except any OK character can follow '#';
@@ -462,10 +482,12 @@ TDATA=            $(YDATA) $(NDATA) $(BACKWARD)
 ZONETABLES=    zone1970.tab zone.tab
 TABDATA=       iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
 LEAP_DEPS=     leapseconds.awk leap-seconds.list
-TZDATA_ZI_DEPS=        zishrink.awk version $(TDATA) $(PACKRATDATA)
+TZDATA_ZI_DEPS=        ziguard.awk zishrink.awk version $(TDATA) $(PACKRATDATA)
+DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA)
 DATA=          $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
                        leapseconds yearistype.sh $(ZONETABLES)
-AWK_SCRIPTS=   checklinks.awk checktab.awk leapseconds.awk zishrink.awk
+AWK_SCRIPTS=   checklinks.awk checktab.awk leapseconds.awk \
+                       ziguard.awk zishrink.awk
 MISC=          $(AWK_SCRIPTS) zoneinfo2tdf.pl
 TZS_YEAR=      2050
 TZS=           to$(TZS_YEAR).tzs
@@ -499,7 +521,8 @@ VERSION_DEPS= \
 
 SHELL=         /bin/sh
 
-all:           tzselect yearistype zic zdump libtz.a $(TABDATA)
+all:           tzselect yearistype zic zdump libtz.a $(TABDATA) \
+                 vanguard.zi main.zi rearguard.zi
 
 ALL:           all date $(ENCHILADA)
 
@@ -534,11 +557,15 @@ version:  $(VERSION_DEPS)
                printf '%s\n' "$$V" >$@.out
                mv $@.out $@
 
-# This file can be tailored by setting BACKWARD, PACKRATDATA, etc.
-tzdata.zi:     $(TZDATA_ZI_DEPS)
+# These files can be tailored by setting BACKWARD, PACKRATDATA, etc.
+vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS)
+               $(AWK) -v outfile='$@' -f ziguard.awk $(TDATA) $(PACKRATDATA) \
+                 >$@.out
+               mv $@.out $@
+tzdata.zi:     $(DATAFORM).zi version
                version=`sed 1q version` && \
                  LC_ALL=C $(AWK) -v version="$$version" -f zishrink.awk \
-                   $(TDATA) $(PACKRATDATA) >$@.out
+                   $(DATAFORM).zi >$@.out
                mv $@.out $@
 
 version.h:     version
@@ -614,19 +641,29 @@ posix_packrat:
 
 zones:         $(REDO)
 
+# dummy.zd is not a real file; it is mentioned here only so that the
+# top-level 'make' does not have a syntax error.
+ZDS = dummy.zd
+# Rule used only by submakes invoked by the $(TZS_NEW) rule.
+# It is separate so that GNU 'make -j' can run instances in parallel.
+$(ZDS): zdump
+               ./zdump -i -c $(TZS_YEAR) '$(wd)/'$$(expr $@ : '\(.*\).zd') >$@
+
 $(TZS_NEW):    tzdata.zi zdump zic
-               mkdir -p tzs.dir
+               rm -fr tzs.dir
+               mkdir tzs.dir
                $(zic) -d tzs.dir tzdata.zi
                $(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \
                   tzdata.zi | LC_ALL=C sort >$@.out
                wd=`pwd` && \
-               zones=`$(AWK) -v wd="$$wd" \
-                               '/^Z/{print wd "/tzs.dir/" $$2}' tzdata.zi \
-                        | LC_ALL=C sort` && \
-               ./zdump -i -c $(TZS_YEAR) $$zones >>$@.out
-               sed 's,^TZ=".*tzs\.dir/,TZ=",' $@.out >$@.sed.out
-               rm -fr tzs.dir $@.out
-               mv $@.sed.out $@
+               set x `$(AWK) '/^Z/{print "tzs.dir/" $$2 ".zd"}' tzdata.zi \
+                       | LC_ALL=C sort -t . -k 2,2` && \
+               shift && \
+               ZDS=$$* && \
+               $(MAKE) wd="$$wd" TZS_YEAR=$(TZS_YEAR) ZDS="$$ZDS" $$ZDS && \
+               sed 's,^TZ=".*tzs\.dir/,TZ=",' $$ZDS >>$@.out
+               rm -fr tzs.dir
+               mv $@.out $@
 
 # If $(TZS) does not already exist (e.g., old-format tarballs), create it.
 # If it exists but 'make check_tzs' fails, a maintainer should inspect the
@@ -669,8 +706,10 @@ check_character_set: $(ENCHILADA)
                sharp='#' && \
                ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
                        $(MISC) $(SOURCES) $(WEB_PAGES) \
-                       CONTRIBUTING LICENSE Makefile README \
+                       CONTRIBUTING LICENSE README \
                        version tzdata.zi && \
+               ! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_CHARSET='$(OK_CHAR)'*$$' \
+                       Makefile && \
                ! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \
                        leapseconds yearistype.sh zone.tab && \
                ! grep -Env $(OK_LINE) $(ENCHILADA); \
@@ -702,7 +741,7 @@ check_sorted: backward backzone iso3166.tab zone.tab z
                $(AWK) '/^[^#]/ $(CHECK_CC_LIST)' zone1970.tab | \
                  LC_ALL=C sort -cu
 
-check_links:   checklinks.awk $(TDATA_TO_CHECK)
+check_links:   checklinks.awk $(TDATA_TO_CHECK) tzdata.zi
                $(AWK) -f checklinks.awk $(TDATA_TO_CHECK)
                $(AWK) -f checklinks.awk tzdata.zi
 
@@ -720,17 +759,26 @@ check_tzs:        $(TZS) $(TZS_NEW)
 check_web:     tz-how-to.html
                $(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) tz-how-to.html
 
-# Check that tzdata.zi generates the same binary data that its sources do.
-check_zishrink: tzdata.zi zic leapseconds $(PACKRATDATA) $(TDATA)
+# Check that zishrink.awk does not alter the data, and that ziguard.awk
+# preserves main-format data.
+check_zishrink: zic leapseconds $(PACKRATDATA) $(TDATA) \
+                 $(DATAFORM).zi tzdata.zi
                for type in posix right; do \
-                 mkdir -p time_t.dir/$$type time_t.dir/$$type-shrunk && \
+                 mkdir -p time_t.dir/$$type time_t.dir/$$type-t \
+                   time_t.dir/$$type-shrunk && \
                  case $$type in \
                    right) leap='-L leapseconds';; \
                    *) leap=;; \
                  esac && \
-                 $(ZIC) $$leap -d time_t.dir/$$type $(TDATA) && \
-                 $(AWK) '/^Rule/' $(TDATA) | \
-                   $(ZIC) $$leap -d time_t.dir/$$type - $(PACKRATDATA) && \
+                 $(ZIC) $$leap -d time_t.dir/$$type $(DATAFORM).zi && \
+                 case $(DATAFORM) in \
+                   main) \
+                     $(ZIC) $$leap -d time_t.dir/$$type-t $(TDATA) && \
+                     $(AWK) '/^Rule/' $(TDATA) | \
+                       $(ZIC) $$leap -d time_t.dir/$$type-t - \
+                         $(PACKRATDATA) && \
+                     diff -r time_t.dir/$$type time_t.dir/$$type-t;; \
+                 esac && \
                  $(ZIC) $$leap -d time_t.dir/$$type-shrunk tzdata.zi && \
                  diff -r time_t.dir/$$type time_t.dir/$$type-shrunk || exit; \
                done
@@ -740,7 +788,7 @@ clean_misc:
                rm -f core *.o *.out \
                  date tzselect version.h zdump zic yearistype libtz.a
 clean:         clean_misc
-               rm -fr *.dir tzdata.zi tzdb-*/ $(TZS_NEW)
+               rm -fr *.dir *.zi tzdb-*/ $(TZS_NEW)
 
 maintainer-clean: clean
                @echo 'This command is intended for maintainers to use; it'
@@ -856,6 +904,9 @@ tarballs traditional_tarballs signatures traditional_s
                VERSION=`cat version` && \
                $(MAKE) VERSION="$$VERSION" $@_version
 
+# These *_version rules are intended for use if VERSION is set by some
+# other means.  Ordinarily these rules are used only by the above
+# non-_version rules, which set VERSION on the 'make' command line.
 tarballs_version: traditional_tarballs_version tzdb-$(VERSION).tar.lz
 traditional_tarballs_version: \
   tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz
@@ -917,13 +968,17 @@ zic.o:            private.h tzfile.h version.h
 .KEEP_STATE:
 
 .PHONY: ALL INSTALL all
-.PHONY: check check_character_set check_links
+.PHONY: check check_character_set check_links check_name_lengths
 .PHONY: check_public check_sorted check_tables
 .PHONY: check_time_t_alternatives check_tzs check_web check_white_space
 .PHONY: check_zishrink
-.PHONY: clean clean_misc force_tzs
+.PHONY: clean clean_misc dummy.zd force_tzs
 .PHONY: install install_data maintainer-clean names
 .PHONY: posix_only posix_packrat posix_right
 .PHONY: public right_only right_posix signatures signatures_version
-.PHONY: tarballs tarballs_version typecheck
+.PHONY: tarballs tarballs_version
+.PHONY: traditional_signatures traditional_signatures_version
+.PHONY: traditional_tarballs traditional_tarballs_version
+.PHONY: typecheck
 .PHONY: zonenames zones
+.PHONY: $(ZDS)

Modified: stable/11/contrib/tzdata/NEWS
==============================================================================
--- stable/11/contrib/tzdata/NEWS       Wed Mar 28 05:58:08 2018        
(r331661)
+++ stable/11/contrib/tzdata/NEWS       Wed Mar 28 07:42:50 2018        
(r331662)
@@ -1,9 +1,146 @@
 News for the tz database
 
+Release 2018d - 2018-03-22 07:05:46 -0700
+
+  Briefly:
+
+  Palestine starts DST a week earlier in 2018.
+  Add support for vanguard and rearguard data consumers.
+  Add subsecond precision to source data format, though not to data.
+
+  Changes to future time stamps
+
+    In 2018, Palestine starts DST on March 24, not March 31.
+    Adjust future predictions accordingly.  (Thanks to Sharef Mustafa.)
+
+  Changes to past and future time stamps
+
+    Casey Station in Antarctica changed from +11 to +08 on 2018-03-11
+    at 04:00.  (Thanks to Steffen Thorsen.)
+
+  Changes to past time stamps
+
+    Historical transitions for Uruguay, represented by
+    America/Montevideo, have been updated per official legal documents,
+    replacing previous data mainly originating from the inventions of
+    Shanks & Pottenger.  This has resulted in adjustments ranging from
+    30 to 90 minutes in either direction over at least two dozen
+    distinct periods ranging from one day to several years in length.
+    A mere handful of pre-1991 transitions are unaffected; data since
+    then has come from more reliable contemporaneous reporting.  These
+    changes affect various timestamps in 1920-1923, 1936, 1939,
+    1942-1943, 1959, 1966-1970, 1972, 1974-1980, and 1988-1990.
+    Additionally, Uruguay's pre-standard-time UT offset has been
+    adjusted westward by 7 seconds, from UT-03:44:44 to UT-03:44:51, to
+    match the location of the Observatory of the National Meteorological
+    Institute in Montevideo.
+    (Thanks to Jeremie Bonjour, Tim Parenti, and Michael Deckers.)
+
+    Enderbury and Kiritimati skipped New Year's Eve 1994, not
+    New Year's Day 1995.  (Thanks to Kerry Shetline.)
+
+    Fix the 1912-01-01 transition for Portugual and its colonies.
+    This transition was at 00:00 according to the new UT offset, not
+    according to the old one.  Also assume that Cape Verde switched on
+    the same date as the rest, not in 1907.  This affects
+    Africa/Bissau, Africa/Sao_Tome, Asia/Macau, Atlantic/Azores,
+    Atlantic/Cape_Verde, Atlantic/Madeira, and Europe/Lisbon.
+    (Thanks to Michael Deckers.)
+
+    Fix an off-by-1 error for pre-1913 timestamps in Jamaica and in
+    Turks & Caicos.
+
+  Changes to past time zone abbreviations
+
+    MMT took effect in Uruguay from 1908-06-10, not 1898-06-28.  There
+    is no clock change associated with the transition.
+
+  Changes to build procedure
+
+    The new DATAFORM macro in the Makefile lets the installer choose
+    among three source data formats.  The idea is to lessen downstream
+    disruption when data formats are improved.
+
+    * DATAFORM=vanguard installs from the latest, bleeding-edge
+      format.  DATAFORM=main (the default) installs from the format
+      used in the 'africa' etc. files.  DATAFORM=rearguard installs
+      from a trailing-edge format.  Eventually, elements of today's
+      vanguard format should move to the main format, and similarly
+      the main format's features should eventually move to the
+      rearguard format.
+
+    * In the current version, the main and rearguard formats are
+      identical and match that of 2018c, so this change does not
+      affect default behavior.  The vanguard format currently contains
+      one feature not in the main format: negative SAVE values.  This
+      improves support for Ireland, which uses Irish Standard Time
+      (IST, UTC+01) in summer and GMT (UTC) in winter.  tzcode has
+      supported negative SAVE values for decades, and this feature
+      should move to the main format soon.  However, it will not move
+      to the rearguard format for quite some time because some
+      downstream parsers do not support it.
+
+    * The build procedure constructs three files vanguard.zi, main.zi,
+      and rearguard.zi, one for each format.  The files represent the
+      same data as closely as the formats allow.  These three files
+      are intended for downstream data consumers and are not
+      installed.  Zoneinfo parsers that do not support negative SAVE values
+      should start using rearguard.zi, so that they will be unaffected
+      when the negative-DST feature moves from vanguard to main.
+      Bleeding-edge Zoneinfo parsers that support the new features
+      already can use vanguard.zi; in this respect, current tzcode is
+      bleeding-edge.
+
+    The Makefile should now be safe for parallelized builds, and 'make
+    -j to2050new.tzs' is now much faster on a multiprocessor host
+    with GNU Make.
+
+    When built with -DSUPPRESS_TZDIR, the tzcode library no longer
+    prepends TZDIR/ to file names that do not begin with '/'.  This is
+    not recommended for general use, due to its security implications.
+    (From a suggestion by Manuela Friedrich.)
+
+  Changes to code
+
+    zic now accepts subsecond precision in expressions like
+    00:19:32.13, which is approximately the legal time of the
+    Netherlands from 1835 to 1937.  However, because it is
+    questionable whether the few recorded uses of non-integer offsets
+    had subsecond precision in practice, there are no plans for tzdata
+    to use this feature.  (Thanks to Steve Allen for pointing out
+    the limitations of historical data in this area.)
+
+    The code is a bit more portable to MS-Windows.  Installers can
+    compile with -DRESERVE_STD_EXT_IDS on MS-Windows platforms that
+    reserve identifiers like 'localtime'.  (Thanks to Manuela
+    Friedrich).
+
+  Changes to documentation and commentary
+
+    theory.html now outlines tzdb's extensions to POSIX's model for
+    civil time, and has a section "POSIX features no longer needed"
+    that lists POSIX API components that are now vestigial.
+    (From suggestions by Steve Summit.)  It also better distinguishes
+    time zones from tz regions.  (From a suggestion by Guy Harris.)
+
+    Commentary is now more consistent about using the phrase "daylight
+    saving time", to match the C name tm_isdst.  Daylight saving time
+    need not occur in summer, and need not have a positive offset from
+    standard time.
+
+    Commentary about historical transitions in Uruguay has been expanded
+    with links to many relevant legal documents.
+    (Thanks to Tim Parenti.)
+
+    Commentary now uses some non-ASCII characters with Unicode value
+    less than U+0100, as they can be useful and should work even with
+    older editors such as XEmacs.
+
+
 Release 2018c - 2018-01-22 23:00:44 -0800
 
   Briefly:
-  Revert Irish changes that relied on negative DST offsets.
+  Revert Irish changes that relied on negative SAVE values.
 
   Changes to tm_isdst
 
@@ -14,8 +151,8 @@ Release 2018c - 2018-01-22 23:00:44 -0800
     struct tm type.  This reversion is intended to be a temporary
     workaround for problems discovered with downstream uses of
     releases 2018a and 2018b, which implemented Irish time by using
-    negative DST offsets in the Eire rules of the 'europe' file.
-    Although negative DST offsets have been part of tzcode for many
+    negative SAVE values in the Eire rules of the 'europe' file.
+    Although negative SAVE values have been part of tzcode for many
     years and are supported by many platforms, they were not
     documented before 2018a and ICU and OpenJDK do not currently
     support them.  A mechanism to export data to platforms lacking
@@ -900,7 +1037,7 @@ Release 2016b - 2016-03-12 17:30:14 -0800
     Comments in zone tables have been improved.  (Thanks to J William Piggott.)
 
     tzselect again limits its menu comments so that menus fit on a
-    24x80 alphanumeric display.
+    24×80 alphanumeric display.
 
     A new web page tz-how-to.html.  (Thanks to Bill Seymour.)
 

Modified: stable/11/contrib/tzdata/africa
==============================================================================
--- stable/11/contrib/tzdata/africa     Wed Mar 28 05:58:08 2018        
(r331661)
+++ stable/11/contrib/tzdata/africa     Wed Mar 28 07:42:50 2018        
(r331662)
@@ -115,13 +115,13 @@ Zone      Africa/Algiers  0:12:12 -       LMT     1891 
Mar 15  0:01
 
 # Cape Verde / Cabo Verde
 #
+# From Paul Eggert (2018-02-16):
 # Shanks gives 1907 for the transition to +02.
-# Perhaps the 1911-05-26 Portuguese decree
-# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
-# merely made it official?
+# For now, ignore that and follow the 1911-05-26 Portuguese decree
+# (see Europe/Lisbon).
 #
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
-Zone Atlantic/Cape_Verde -1:34:04 -    LMT     1907        # Praia
+Zone Atlantic/Cape_Verde -1:34:04 -    LMT     1912 Jan 01  2:00u # Praia
                        -2:00   -       -02     1942 Sep
                        -2:00   1:00    -01     1945 Oct 15
                        -2:00   -       -02     1975 Nov 25  2:00
@@ -370,15 +370,34 @@ Zone      Africa/Cairo    2:05:09 -       LMT     1900 Oct
 # See Africa/Abidjan.
 
 # Ghana
-# Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
+
+# From Paul Eggert (2018-01-30):
 # Whitman says DST was observed from 1931 to "the present";
-# Shanks & Pottenger say 1936 to 1942;
-# and September 1 to January 1 is given by:
-# Scott Keltie J, Epstein M (eds), The Statesman's Year-Book,
-# 57th ed. Macmillan, London (1920), OCLC 609408015, pp xxviii.
-# For lack of better info, assume DST was observed from 1920 to 1942.
-Rule   Ghana   1920    1942    -       Sep      1      0:00    0:20    GHST
-Rule   Ghana   1920    1942    -       Dec     31      0:00    0       GMT
+# Shanks & Pottenger say 1936 to 1942 with 20 minutes of DST,
+# with transitions on 09-01 and 12-31 at 00:00.
+# Page 33 of Parish GCB, Colonial Reports - Annual. No. 1066. Gold
+# Coast. Report for 1919. (March 1921), OCLC 784024077
+# 
http://libsysdigi.library.illinois.edu/ilharvest/africana/books2011-05/5530214/5530214_1919/5530214_1919_opt.pdf
+# lists the Determination of the Time Ordinance, 1919, No. 18,
+# "to advance the time observed locally by the space of twenty minutes
+# during the last four months of each year; the object in view being
+# to extend during those months the period of daylight-time available
+# for evening recreation after office hours."
+# Vanessa Ogle, The Global Transformation of Time, 1870-1950 (2015), p 33,
+# writes "In 1919, the Gold Coast (Ghana as of 1957) made Greenwich
+# time its legal time and simultaneously legalized a summer time of
+# UTC - 00:20 minutes from March to October."; a footnote lists
+# the ordinance as being dated 1919-11-24.
+# The Crown Colonist, Volume 12 (1942), p 176, says "the Government
+# intend advancing Gold Coast time half an hour ahead of G.M.T.
+# The actual date of the alteration has not yet been announced."
+# These sources are incomplete and contradictory.  Possibly what is
+# now Ghana observed different DST regimes in different years.  For
+# lack of better info, use Shanks except treat the minus sign as a
+# typo, and assume DST started in 1920 not 1936.
+# Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
+Rule   Ghana   1920    1942    -       Sep      1      0:00    0:20    -
+Rule   Ghana   1920    1942    -       Dec     31      0:00    0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone   Africa/Accra    -0:00:52 -      LMT     1918
                         0:00   Ghana   GMT/+0020
@@ -388,13 +407,13 @@ Zone      Africa/Accra    -0:00:52 -      LMT     1918
 
 # Guinea-Bissau
 #
+# From Paul Eggert (2018-02-16):
 # Shanks gives 1911-05-26 for the transition to WAT,
 # evidently confusing the date of the Portuguese decree
-# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
-# with the date that it took effect, namely 1912-01-01.
+# (see Europe/Lisbon) with the date that it took effect.
 #
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
-Zone   Africa/Bissau   -1:02:20 -      LMT     1912 Jan  1
+Zone   Africa/Bissau   -1:02:20 -      LMT     1912 Jan  1  1:00u
                        -1:00   -       -01     1975
                         0:00   -       GMT
 
@@ -590,9 +609,9 @@ Zone        Africa/Tripoli  0:52:44 -       LMT     1920
 # at 2am (or 02:00) local time..."
 
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule Mauritius 1982    only    -       Oct     10      0:00    1:00    S
+Rule Mauritius 1982    only    -       Oct     10      0:00    1:00    -
 Rule Mauritius 1983    only    -       Mar     21      0:00    0       -
-Rule Mauritius 2008    only    -       Oct     lastSun 2:00    1:00    S
+Rule Mauritius 2008    only    -       Oct     lastSun 2:00    1:00    -
 Rule Mauritius 2009    only    -       Mar     lastSun 2:00    0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone Indian/Mauritius  3:50:00 -       LMT     1907 # Port Louis
@@ -1037,6 +1056,8 @@ Zone      Indian/Reunion  3:41:52 -       LMT     1911 
Jun # Saint-Den
 
 # São Tomé and Príncipe
 
+# See Europe/Lisbon for info about the 1912 transition.
+
 # From Steffen Thorsen (2018-01-08):
 # Multiple sources tell that São Tomé changed from UTC to UTC+1 as
 # they entered the year 2018.
@@ -1045,7 +1066,7 @@ Zone      Indian/Reunion  3:41:52 -       LMT     1911 
Jun # Saint-Den
 # 
http://www.mnec.gov.st/index.php/publicacoes/documentos/file/90-decreto-lei-n-25-2017
 
 Zone   Africa/Sao_Tome  0:26:56 -      LMT     1884
-                       -0:36:45 -      LMT     1912 # Lisbon Mean Time
+                       -0:36:45 -      LMT     1912 Jan  1 00:00u # Lisbon MT
                         0:00   -       GMT     2018 Jan  1 01:00
                         1:00   -       WAT
 

Modified: stable/11/contrib/tzdata/antarctica
==============================================================================
--- stable/11/contrib/tzdata/antarctica Wed Mar 28 05:58:08 2018        
(r331661)
+++ stable/11/contrib/tzdata/antarctica Wed Mar 28 07:42:50 2018        
(r331662)
@@ -75,7 +75,8 @@ Zone Antarctica/Casey 0       -       -00     1969
                        8:00    -       +08     2011 Oct 28  2:00
                        11:00   -       +11     2012 Feb 21 17:00u
                        8:00    -       +08     2016 Oct 22
-                       11:00   -       +11
+                       11:00   -       +11     2018 Mar 11  4:00
+                       8:00    -       +08
 Zone Antarctica/Davis  0       -       -00     1957 Jan 13
                        7:00    -       +07     1964 Nov
                        0       -       -00     1969 Feb

Modified: stable/11/contrib/tzdata/asia
==============================================================================
--- stable/11/contrib/tzdata/asia       Wed Mar 28 05:58:08 2018        
(r331661)
+++ stable/11/contrib/tzdata/asia       Wed Mar 28 07:42:50 2018        
(r331662)
@@ -69,13 +69,13 @@
 Rule   EUAsia  1981    max     -       Mar     lastSun  1:00u  1:00    S
 Rule   EUAsia  1979    1995    -       Sep     lastSun  1:00u  0       -
 Rule   EUAsia  1996    max     -       Oct     lastSun  1:00u  0       -
-Rule E-EurAsia 1981    max     -       Mar     lastSun  0:00   1:00    S
+Rule E-EurAsia 1981    max     -       Mar     lastSun  0:00   1:00    -
 Rule E-EurAsia 1979    1995    -       Sep     lastSun  0:00   0       -
 Rule E-EurAsia 1996    max     -       Oct     lastSun  0:00   0       -
-Rule RussiaAsia        1981    1984    -       Apr     1        0:00   1:00    
S
+Rule RussiaAsia        1981    1984    -       Apr     1        0:00   1:00    
-
 Rule RussiaAsia        1981    1983    -       Oct     1        0:00   0       
-
 Rule RussiaAsia        1984    1995    -       Sep     lastSun  2:00s  0       
-
-Rule RussiaAsia        1985    2010    -       Mar     lastSun  2:00s  1:00    
S
+Rule RussiaAsia        1985    2010    -       Mar     lastSun  2:00s  1:00    
-
 Rule RussiaAsia        1996    2010    -       Oct     lastSun  2:00s  0       
-
 
 # Afghanistan
@@ -110,7 +110,7 @@ Zone        Asia/Kabul      4:36:48 -       LMT     1890
 # (brief)
 # http://www.worldtimezone.com/dst_news/dst_news_armenia03.html
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule Armenia   2011    only    -       Mar     lastSun  2:00s  1:00    S
+Rule Armenia   2011    only    -       Mar     lastSun  2:00s  1:00    -
 Rule Armenia   2011    only    -       Oct     lastSun  2:00s  0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone   Asia/Yerevan    2:58:00 -       LMT     1924 May  2
@@ -136,7 +136,7 @@ Zone        Asia/Yerevan    2:58:00 -       LMT     1924 
May  2
 # http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
 
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   Azer    1997    2015    -       Mar     lastSun  4:00   1:00    S
+Rule   Azer    1997    2015    -       Mar     lastSun  4:00   1:00    -
 Rule   Azer    1997    2015    -       Oct     lastSun  5:00   0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone   Asia/Baku       3:19:24 -       LMT     1924 May  2
@@ -223,7 +223,7 @@ Zone        Asia/Baku       3:19:24 -       LMT     1924 
May  2
 # http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html
 
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   Dhaka   2009    only    -       Jun     19      23:00   1:00    S
+Rule   Dhaka   2009    only    -       Jun     19      23:00   1:00    -
 Rule   Dhaka   2009    only    -       Dec     31      24:00   0       -
 
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
@@ -764,8 +764,9 @@ Rule        Macau   1974    1977    -       Oct     Sun>=15 
3:30    0       S
 Rule   Macau   1975    1977    -       Apr     Sun>=15 3:30    1:00    D
 Rule   Macau   1978    1980    -       Apr     Sun>=15 0:00    1:00    D
 Rule   Macau   1978    1980    -       Oct     Sun>=15 0:00    0       S
+# See Europe/Lisbon for info about the 1912 transition.
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
-Zone   Asia/Macau      7:34:20 -       LMT     1912 Jan  1
+Zone   Asia/Macau      7:34:20 -       LMT     1911 Dec 31 16:00u
                        8:00    Macau   C%sT
 
 
@@ -1106,61 +1107,61 @@ Zone Asia/Jayapura      9:22:48 -       LMT     1932 Nov
 # thirtieth day of Shahrivar.
 #
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   Iran    1978    1980    -       Mar     21      0:00    1:00    D
-Rule   Iran    1978    only    -       Oct     21      0:00    0       S
-Rule   Iran    1979    only    -       Sep     19      0:00    0       S
-Rule   Iran    1980    only    -       Sep     23      0:00    0       S
-Rule   Iran    1991    only    -       May      3      0:00    1:00    D
-Rule   Iran    1992    1995    -       Mar     22      0:00    1:00    D
-Rule   Iran    1991    1995    -       Sep     22      0:00    0       S
-Rule   Iran    1996    only    -       Mar     21      0:00    1:00    D
-Rule   Iran    1996    only    -       Sep     21      0:00    0       S
-Rule   Iran    1997    1999    -       Mar     22      0:00    1:00    D
-Rule   Iran    1997    1999    -       Sep     22      0:00    0       S
-Rule   Iran    2000    only    -       Mar     21      0:00    1:00    D
-Rule   Iran    2000    only    -       Sep     21      0:00    0       S
-Rule   Iran    2001    2003    -       Mar     22      0:00    1:00    D
-Rule   Iran    2001    2003    -       Sep     22      0:00    0       S
-Rule   Iran    2004    only    -       Mar     21      0:00    1:00    D
-Rule   Iran    2004    only    -       Sep     21      0:00    0       S
-Rule   Iran    2005    only    -       Mar     22      0:00    1:00    D
-Rule   Iran    2005    only    -       Sep     22      0:00    0       S
-Rule   Iran    2008    only    -       Mar     21      0:00    1:00    D
-Rule   Iran    2008    only    -       Sep     21      0:00    0       S
-Rule   Iran    2009    2011    -       Mar     22      0:00    1:00    D
-Rule   Iran    2009    2011    -       Sep     22      0:00    0       S
-Rule   Iran    2012    only    -       Mar     21      0:00    1:00    D
-Rule   Iran    2012    only    -       Sep     21      0:00    0       S
-Rule   Iran    2013    2015    -       Mar     22      0:00    1:00    D
-Rule   Iran    2013    2015    -       Sep     22      0:00    0       S
-Rule   Iran    2016    only    -       Mar     21      0:00    1:00    D
-Rule   Iran    2016    only    -       Sep     21      0:00    0       S
-Rule   Iran    2017    2019    -       Mar     22      0:00    1:00    D
-Rule   Iran    2017    2019    -       Sep     22      0:00    0       S
-Rule   Iran    2020    only    -       Mar     21      0:00    1:00    D
-Rule   Iran    2020    only    -       Sep     21      0:00    0       S
-Rule   Iran    2021    2023    -       Mar     22      0:00    1:00    D
-Rule   Iran    2021    2023    -       Sep     22      0:00    0       S
-Rule   Iran    2024    only    -       Mar     21      0:00    1:00    D
-Rule   Iran    2024    only    -       Sep     21      0:00    0       S
-Rule   Iran    2025    2027    -       Mar     22      0:00    1:00    D
-Rule   Iran    2025    2027    -       Sep     22      0:00    0       S
-Rule   Iran    2028    2029    -       Mar     21      0:00    1:00    D
-Rule   Iran    2028    2029    -       Sep     21      0:00    0       S
-Rule   Iran    2030    2031    -       Mar     22      0:00    1:00    D
-Rule   Iran    2030    2031    -       Sep     22      0:00    0       S
-Rule   Iran    2032    2033    -       Mar     21      0:00    1:00    D
-Rule   Iran    2032    2033    -       Sep     21      0:00    0       S
-Rule   Iran    2034    2035    -       Mar     22      0:00    1:00    D
-Rule   Iran    2034    2035    -       Sep     22      0:00    0       S
+Rule   Iran    1978    1980    -       Mar     21      0:00    1:00    -
+Rule   Iran    1978    only    -       Oct     21      0:00    0       -
+Rule   Iran    1979    only    -       Sep     19      0:00    0       -
+Rule   Iran    1980    only    -       Sep     23      0:00    0       -
+Rule   Iran    1991    only    -       May      3      0:00    1:00    -
+Rule   Iran    1992    1995    -       Mar     22      0:00    1:00    -
+Rule   Iran    1991    1995    -       Sep     22      0:00    0       -
+Rule   Iran    1996    only    -       Mar     21      0:00    1:00    -
+Rule   Iran    1996    only    -       Sep     21      0:00    0       -
+Rule   Iran    1997    1999    -       Mar     22      0:00    1:00    -
+Rule   Iran    1997    1999    -       Sep     22      0:00    0       -
+Rule   Iran    2000    only    -       Mar     21      0:00    1:00    -
+Rule   Iran    2000    only    -       Sep     21      0:00    0       -
+Rule   Iran    2001    2003    -       Mar     22      0:00    1:00    -
+Rule   Iran    2001    2003    -       Sep     22      0:00    0       -
+Rule   Iran    2004    only    -       Mar     21      0:00    1:00    -
+Rule   Iran    2004    only    -       Sep     21      0:00    0       -
+Rule   Iran    2005    only    -       Mar     22      0:00    1:00    -
+Rule   Iran    2005    only    -       Sep     22      0:00    0       -
+Rule   Iran    2008    only    -       Mar     21      0:00    1:00    -
+Rule   Iran    2008    only    -       Sep     21      0:00    0       -
+Rule   Iran    2009    2011    -       Mar     22      0:00    1:00    -
+Rule   Iran    2009    2011    -       Sep     22      0:00    0       -
+Rule   Iran    2012    only    -       Mar     21      0:00    1:00    -
+Rule   Iran    2012    only    -       Sep     21      0:00    0       -
+Rule   Iran    2013    2015    -       Mar     22      0:00    1:00    -
+Rule   Iran    2013    2015    -       Sep     22      0:00    0       -
+Rule   Iran    2016    only    -       Mar     21      0:00    1:00    -
+Rule   Iran    2016    only    -       Sep     21      0:00    0       -
+Rule   Iran    2017    2019    -       Mar     22      0:00    1:00    -
+Rule   Iran    2017    2019    -       Sep     22      0:00    0       -
+Rule   Iran    2020    only    -       Mar     21      0:00    1:00    -
+Rule   Iran    2020    only    -       Sep     21      0:00    0       -
+Rule   Iran    2021    2023    -       Mar     22      0:00    1:00    -
+Rule   Iran    2021    2023    -       Sep     22      0:00    0       -
+Rule   Iran    2024    only    -       Mar     21      0:00    1:00    -
+Rule   Iran    2024    only    -       Sep     21      0:00    0       -
+Rule   Iran    2025    2027    -       Mar     22      0:00    1:00    -
+Rule   Iran    2025    2027    -       Sep     22      0:00    0       -
+Rule   Iran    2028    2029    -       Mar     21      0:00    1:00    -
+Rule   Iran    2028    2029    -       Sep     21      0:00    0       -
+Rule   Iran    2030    2031    -       Mar     22      0:00    1:00    -
+Rule   Iran    2030    2031    -       Sep     22      0:00    0       -
+Rule   Iran    2032    2033    -       Mar     21      0:00    1:00    -
+Rule   Iran    2032    2033    -       Sep     21      0:00    0       -
+Rule   Iran    2034    2035    -       Mar     22      0:00    1:00    -
+Rule   Iran    2034    2035    -       Sep     22      0:00    0       -
 #
 # The following rules are approximations starting in the year 2038.
 # These are the best post-2037 approximations available, given the
 # restrictions of a single rule using a Gregorian-based data format.
 # At some point this table will need to be extended, though quite
 # possibly Iran will change the rules first.
-Rule   Iran    2036    max     -       Mar     21      0:00    1:00    D
-Rule   Iran    2036    max     -       Sep     21      0:00    0       S
+Rule   Iran    2036    max     -       Mar     21      0:00    1:00    -
+Rule   Iran    2036    max     -       Sep     21      0:00    0       -
 
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone   Asia/Tehran     3:25:44 -       LMT     1916
@@ -1196,17 +1197,17 @@ Zone    Asia/Tehran     3:25:44 -       LMT     1916
 # https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
 
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   Iraq    1982    only    -       May     1       0:00    1:00    D
-Rule   Iraq    1982    1984    -       Oct     1       0:00    0       S
-Rule   Iraq    1983    only    -       Mar     31      0:00    1:00    D
-Rule   Iraq    1984    1985    -       Apr     1       0:00    1:00    D
-Rule   Iraq    1985    1990    -       Sep     lastSun 1:00s   0       S
-Rule   Iraq    1986    1990    -       Mar     lastSun 1:00s   1:00    D
+Rule   Iraq    1982    only    -       May     1       0:00    1:00    -
+Rule   Iraq    1982    1984    -       Oct     1       0:00    0       -
+Rule   Iraq    1983    only    -       Mar     31      0:00    1:00    -
+Rule   Iraq    1984    1985    -       Apr     1       0:00    1:00    -
+Rule   Iraq    1985    1990    -       Sep     lastSun 1:00s   0       -
+Rule   Iraq    1986    1990    -       Mar     lastSun 1:00s   1:00    -
 # IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the ':01' is a typo.
 # Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
 #
-Rule   Iraq    1991    2007    -       Apr      1      3:00s   1:00    D
-Rule   Iraq    1991    2007    -       Oct      1      3:00s   0       S
+Rule   Iraq    1991    2007    -       Apr      1      3:00s   1:00    -
+Rule   Iraq    1991    2007    -       Oct      1      3:00s   0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone   Asia/Baghdad    2:57:40 -       LMT     1890
                        2:57:36 -       BMT     1918     # Baghdad Mean Time?
@@ -1478,8 +1479,7 @@ Rule      Japan   1950    1951    -       May     Sat>=1  
24:00   1:00    D
 
 # From Hideyuki Suzuki (1998-11-09):
 # 'Tokyo' usually stands for the former location of Tokyo Astronomical
-# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s),
-# 35 degrees 39' 16.0" N.
+# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
 # This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
 # edited by National Astronomical Observatory of Japan....
 # JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
@@ -1487,10 +1487,10 @@ Rule    Japan   1950    1951    -       May     Sat>=1  
24:00   1:00    D
 
 # From Hideyuki Suzuki (1998-11-16):
 # The ordinance No. 51 (1886) established "standard time" in Japan,
-# which stands for the time on 135 degrees E.
+# which stands for the time on 135° E.
 # In the ordinance No. 167 (1895), "standard time" was renamed to "central
 # standard time".  And the same ordinance also established "western standard
-# time", which stands for the time on 120 degrees E....  But "western standard
+# time", which stands for the time on 120° E....  But "western standard
 # time" was abolished in the ordinance No. 529 (1937).  In the ordinance No.
 # 167, there is no mention regarding for what place western standard time is
 # standard....
@@ -1903,9 +1903,9 @@ Zone      Asia/Oral       3:25:24 -       LMT     1924 
May  2 # or Ural'sk
 # From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
 
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   Kyrgyz  1992    1996    -       Apr     Sun>=7  0:00s   1:00    S
+Rule   Kyrgyz  1992    1996    -       Apr     Sun>=7  0:00s   1:00    -
 Rule   Kyrgyz  1992    1996    -       Sep     lastSun 0:00    0       -
-Rule   Kyrgyz  1997    2005    -       Mar     lastSun 2:30    1:00    S
+Rule   Kyrgyz  1997    2005    -       Mar     lastSun 2:30    1:00    -
 Rule   Kyrgyz  1997    2004    -       Oct     lastSun 2:30    0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone   Asia/Bishkek    4:58:24 -       LMT     1924 May  2
@@ -2037,7 +2037,7 @@ Zone      Asia/Beirut     2:22:00 -       LMT     1880
 
 # Malaysia
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   NBorneo 1935    1941    -       Sep     14      0:00    0:20    TS # 
one-Third Summer
+Rule   NBorneo 1935    1941    -       Sep     14      0:00    0:20    -
 Rule   NBorneo 1935    1941    -       Dec     14      0:00    0       -
 #
 # peninsular Malaysia
@@ -2182,7 +2182,7 @@ Zone      Indian/Maldives 4:54:00 -       LMT     1880 # 
Malé
 # http://zasag.mn/news/view/8969
 
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   Mongol  1983    1984    -       Apr     1       0:00    1:00    S
+Rule   Mongol  1983    1984    -       Apr     1       0:00    1:00    -
 Rule   Mongol  1983    only    -       Oct     1       0:00    0       -
 # Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
 # but McDow says the 2001 switches occurred at 02:00.  Also, IATA SSIM
@@ -2199,13 +2199,13 @@ Rule    Mongol  1983    only    -       Oct     1       
0:00    0       -
 # Mongolian Government meeting has concluded today to cancel daylight
 # saving time adoption in Mongolia.  Source: http://zasag.mn/news/view/16192
 
-Rule   Mongol  1985    1998    -       Mar     lastSun 0:00    1:00    S
+Rule   Mongol  1985    1998    -       Mar     lastSun 0:00    1:00    -
 Rule   Mongol  1984    1998    -       Sep     lastSun 0:00    0       -
 # IATA SSIM (1999-09) says Mongolia no longer observes DST.
-Rule   Mongol  2001    only    -       Apr     lastSat 2:00    1:00    S
+Rule   Mongol  2001    only    -       Apr     lastSat 2:00    1:00    -
 Rule   Mongol  2001    2006    -       Sep     lastSat 2:00    0       -
-Rule   Mongol  2002    2006    -       Mar     lastSat 2:00    1:00    S
-Rule   Mongol  2015    2016    -       Mar     lastSat 2:00    1:00    S
+Rule   Mongol  2002    2006    -       Mar     lastSat 2:00    1:00    -
+Rule   Mongol  2015    2016    -       Mar     lastSat 2:00    1:00    -
 Rule   Mongol  2015    2016    -       Sep     lastSat 0:00    0       -
 
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
@@ -2639,9 +2639,6 @@ Zone      Asia/Karachi    4:28:12 -       LMT     1907
 # [Google translation]: "The Council also decided to start daylight
 # saving in Palestine as of one o'clock on Saturday morning,
 # 2016-03-26, to provide the clock 60 minutes ahead."
-#
-# From Paul Eggert (2016-03-12):
-# Predict spring transitions on March's last Saturday at 01:00 from now on.
 
 # From Sharef Mustafa (2016-10-19):
 # [T]he Palestinian cabinet decision (Mar 8th 2016) published on
@@ -2658,6 +2655,16 @@ Zone     Asia/Karachi    4:28:12 -       LMT     1907
 # https://www.timeanddate.com/time/change/gaza-strip/gaza
 # https://www.timeanddate.com/time/change/west-bank/hebron
 
+# From Sharef Mustafa (2018-03-16):
+# Palestine summer time will start on Mar 24th 2018 by advancing the
+# clock by 60 minutes as per Palestinian cabinet decision published on
+# the offical website, though the decree did not specify the exact
+# time of the time shift.
+# 
http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
+#
+# From Paul Eggert (2018-03-16):
+# For 2016 on, predict spring transitions on March's fourth Saturday at 01:00.
+
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 Rule EgyptAsia 1957    only    -       May     10      0:00    1:00    S
 Rule EgyptAsia 1957    1958    -       Oct      1      0:00    0       -
@@ -2687,7 +2694,7 @@ Rule Palestine    2012    only    -       Sep     21      
1:00    0       -
 Rule Palestine 2013    only    -       Sep     Fri>=21 0:00    0       -
 Rule Palestine 2014    2015    -       Oct     Fri>=21 0:00    0       -
 Rule Palestine 2015    only    -       Mar     lastFri 24:00   1:00    S
-Rule Palestine 2016    max     -       Mar     lastSat 1:00    1:00    S
+Rule Palestine 2016    max     -       Mar     Sat>=22 1:00    1:00    S
 Rule Palestine 2016    max     -       Oct     lastSat 1:00    0       -
 
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
@@ -2737,11 +2744,11 @@ Zone    Asia/Hebron     2:20:23 -       LMT     1900 Oct
 # 
http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time
 
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   Phil    1936    only    -       Nov     1       0:00    1:00    S
+Rule   Phil    1936    only    -       Nov     1       0:00    1:00    -
 Rule   Phil    1937    only    -       Feb     1       0:00    0       -
-Rule   Phil    1954    only    -       Apr     12      0:00    1:00    S
+Rule   Phil    1954    only    -       Apr     12      0:00    1:00    -
 Rule   Phil    1954    only    -       Jul     1       0:00    0       -
-Rule   Phil    1978    only    -       Mar     22      0:00    1:00    S
+Rule   Phil    1978    only    -       Mar     22      0:00    1:00    -
 Rule   Phil    1978    only    -       Sep     21      0:00    0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone   Asia/Manila     -15:56:00 -     LMT     1844 Dec 31
@@ -3097,9 +3104,9 @@ Zone      Asia/Tashkent   4:37:11 -       LMT     1924 
May  2
 # and is the basis for the information below.
 #
 # The 1906 transition was effective July 1 and standardized Indochina to
-# Phù Liễn Observatory, legally 104 deg. 17'17" east of Paris.
+# Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
 # It's unclear whether this meant legal Paris Mean Time (00:09:21) or
-# the Paris Meridian (2 deg. 20'14.03" E); the former yields 07:06:30.1333...
+# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
 # and the latter 07:06:29.333... so either way it rounds to 07:06:30,
 # which is used below even though the modern-day Phù Liễn Observatory
 # is closer to 07:06:31.  Abbreviate Phù Liễn Mean Time as PLMT.

Modified: stable/11/contrib/tzdata/australasia
==============================================================================
--- stable/11/contrib/tzdata/australasia        Wed Mar 28 05:58:08 2018        
(r331661)
+++ stable/11/contrib/tzdata/australasia        Wed Mar 28 07:42:50 2018        
(r331662)
@@ -196,20 +196,20 @@ Zone Australia/Broken_Hill 9:25:48 -      LMT     1895 Feb
 
 # Lord Howe Island
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   LH      1981    1984    -       Oct     lastSun 2:00    1:00    D
-Rule   LH      1982    1985    -       Mar     Sun>=1  2:00    0       S
-Rule   LH      1985    only    -       Oct     lastSun 2:00    0:30    D
-Rule   LH      1986    1989    -       Mar     Sun>=15 2:00    0       S
-Rule   LH      1986    only    -       Oct     19      2:00    0:30    D
-Rule   LH      1987    1999    -       Oct     lastSun 2:00    0:30    D
-Rule   LH      1990    1995    -       Mar     Sun>=1  2:00    0       S
-Rule   LH      1996    2005    -       Mar     lastSun 2:00    0       S
-Rule   LH      2000    only    -       Aug     lastSun 2:00    0:30    D
-Rule   LH      2001    2007    -       Oct     lastSun 2:00    0:30    D
-Rule   LH      2006    only    -       Apr     Sun>=1  2:00    0       S
-Rule   LH      2007    only    -       Mar     lastSun 2:00    0       S
-Rule   LH      2008    max     -       Apr     Sun>=1  2:00    0       S
-Rule   LH      2008    max     -       Oct     Sun>=1  2:00    0:30    D
+Rule   LH      1981    1984    -       Oct     lastSun 2:00    1:00    -
+Rule   LH      1982    1985    -       Mar     Sun>=1  2:00    0       -
+Rule   LH      1985    only    -       Oct     lastSun 2:00    0:30    -
+Rule   LH      1986    1989    -       Mar     Sun>=15 2:00    0       -
+Rule   LH      1986    only    -       Oct     19      2:00    0:30    -
+Rule   LH      1987    1999    -       Oct     lastSun 2:00    0:30    -
+Rule   LH      1990    1995    -       Mar     Sun>=1  2:00    0       -
+Rule   LH      1996    2005    -       Mar     lastSun 2:00    0       -
+Rule   LH      2000    only    -       Aug     lastSun 2:00    0:30    -
+Rule   LH      2001    2007    -       Oct     lastSun 2:00    0:30    -
+Rule   LH      2006    only    -       Apr     Sun>=1  2:00    0       -
+Rule   LH      2007    only    -       Mar     lastSun 2:00    0       -
+Rule   LH      2008    max     -       Apr     Sun>=1  2:00    0       -
+Rule   LH      2008    max     -       Oct     Sun>=1  2:00    0:30    -
 Zone Australia/Lord_Howe 10:36:20 -    LMT     1895 Feb
                        10:00   -       AEST    1981 Mar
                        10:30   LH      +1030/+1130 1985 Jul
@@ -367,15 +367,15 @@ Zone      Indian/Cocos    6:27:40 -       LMT     1900
 # practice than guessing no DST.
 
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   Fiji    1998    1999    -       Nov     Sun>=1  2:00    1:00    S
+Rule   Fiji    1998    1999    -       Nov     Sun>=1  2:00    1:00    -
 Rule   Fiji    1999    2000    -       Feb     lastSun 3:00    0       -
-Rule   Fiji    2009    only    -       Nov     29      2:00    1:00    S
+Rule   Fiji    2009    only    -       Nov     29      2:00    1:00    -
 Rule   Fiji    2010    only    -       Mar     lastSun 3:00    0       -
-Rule   Fiji    2010    2013    -       Oct     Sun>=21 2:00    1:00    S
+Rule   Fiji    2010    2013    -       Oct     Sun>=21 2:00    1:00    -
 Rule   Fiji    2011    only    -       Mar     Sun>=1  3:00    0       -
 Rule   Fiji    2012    2013    -       Jan     Sun>=18 3:00    0       -
 Rule   Fiji    2014    only    -       Jan     Sun>=18 2:00    0       -
-Rule   Fiji    2014    max     -       Nov     Sun>=1  2:00    1:00    S
+Rule   Fiji    2014    max     -       Nov     Sun>=1  2:00    1:00    -
 Rule   Fiji    2015    max     -       Jan     Sun>=14 3:00    0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone   Pacific/Fiji    11:55:44 -      LMT     1915 Oct 26 # Suva
@@ -406,11 +406,11 @@ Zone Pacific/Tarawa        11:32:04 -     LMT     1901 # 
Bairiki
                         12:00  -       +12
 Zone Pacific/Enderbury -11:24:20 -     LMT     1901
                        -12:00  -       -12     1979 Oct
-                       -11:00  -       -11     1995
+                       -11:00  -       -11     1994 Dec 31
                         13:00  -       +13
 Zone Pacific/Kiritimati        -10:29:20 -     LMT     1901
                        -10:40  -       -1040   1979 Oct
-                       -10:00  -       -10     1995
+                       -10:00  -       -10     1994 Dec 31
                         14:00  -       +14
 
 # N Mariana Is
@@ -447,9 +447,9 @@ Zone        Pacific/Nauru   11:07:40 -      LMT     1921 
Jan 15 # Uaobe
 
 # New Caledonia
 # Rule NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
-Rule   NC      1977    1978    -       Dec     Sun>=1  0:00    1:00    S
+Rule   NC      1977    1978    -       Dec     Sun>=1  0:00    1:00    -
 Rule   NC      1978    1979    -       Feb     27      0:00    0       -
-Rule   NC      1996    only    -       Dec      1      2:00s   1:00    S
+Rule   NC      1996    only    -       Dec      1      2:00s   1:00    -
 # Shanks & Pottenger say the following was at 2:00; go with IATA.
 Rule   NC      1997    only    -       Mar      2      2:00s   0       -
 # Zone NAME            GMTOFF  RULES   FORMAT  [UNTIL]
@@ -469,27 +469,28 @@ Rule      NZ      1929    1933    -       Mar     Sun>=15 
2:00    0       M
 Rule   NZ      1934    1940    -       Apr     lastSun 2:00    0       M
 Rule   NZ      1934    1940    -       Sep     lastSun 2:00    0:30    S
 Rule   NZ      1946    only    -       Jan      1      0:00    0       S
-# Since 1957 Chatham has been 45 minutes ahead of NZ, but there's no
-# convenient single notation for the date and time of this transition
-# so we must duplicate the Rule lines.
+# Since 1957 Chatham has been 45 minutes ahead of NZ, but until 2018a
+# there was no documented single notation for the date and time of this
+# transition.  Duplicate the Rule lines for now, to give the 2018a change

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"

Reply via email to