ID: 33414 User updated by: nickj-phpbugs at nickj dot org Reported By: nickj-phpbugs at nickj dot org Status: Closed Bug Type: Date/time related Operating System: Debian Woody GNU/Linux 3.0r6 PHP Version: 5CVS-2005-06-22 (dev) Assigned To: derick New Comment:
You are quite correct. I apologize for reopening. I honestly never knew that a time shift could skip a day - how bizarre! Here is an abstract of a New York Times article about the 1993 Kwajalein jump: http://select.nytimes.com/gst/abstract.html?res=F00610F73D5A0C718EDDA10894DB494D81 , and there is a little bit of info about it here too: http://en.wikipedia.org/wiki/Time_zone#UTC_.2B_12.2C_M Here is some info about the 1994/1995 Kiribati jump: http://wikitravel.org/en/Kiribati#Understand . As for Enderbury, after 1979 it became part of Kiribati (ref: http://en.wikipedia.org/wiki/Enderbury_Island ), which explains why it has the same jump as Kiribati. Previous Comments: ------------------------------------------------------------------------ [2005-10-07 23:49:56] [EMAIL PROTECTED] This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. Those three are correct, the mentioned days simply don't exist as at this time the zones switched from -11 to +13 or similar: [EMAIL PROTECTED]:~$ zdump -v Pacific/Kwajalein Pacific/Kwajalein Fri Aug 20 11:59:59 1993 UTC = Thu Aug 19 23:59:59 1993 MHT isdst=0 gmtoff=-43200 Pacific/Kwajalein Fri Aug 20 12:00:00 1993 UTC = Sat Aug 21 00:00:00 1993 MHT isdst=0 gmtoff=43200 [EMAIL PROTECTED]:~$ zdump -v Pacific/Enderbury Pacific/Enderbury Sun Jan 1 10:59:59 1995 UTC = Sat Dec 31 23:59:59 1994 PHOT isdst=0 gmtoff=-39600 Pacific/Enderbury Sun Jan 1 11:00:00 1995 UTC = Mon Jan 2 00:00:00 1995 PHOT isdst=0 gmtoff=46800 [EMAIL PROTECTED]:~$ zdump -v Pacific/Kiritimati Pacific/Kiritimati Sun Jan 1 09:59:59 1995 UTC = Sat Dec 31 23:59:59 1994 LINT isdst=0 gmtoff=-36000 Pacific/Kiritimati Sun Jan 1 10:00:00 1995 UTC = Mon Jan 2 00:00:00 1995 LINT isdst=0 gmtoff=50400 ------------------------------------------------------------------------ [2005-09-05 08:38:35] nickj-phpbugs at nickj dot org Looking very good but I'm still showing just a handful that are giving the wrong days, namely: =================================================================== ludo:~/tmp/php-5.1-dev# cat my-bugs/bug33414/win32-wrong-days.php <?php $tz="Pacific/Kwajalein"; print "TZ=$tz\n"; putenv("TZ=$tz"); $tStamp = mktime (17, 17, 17, 1, 8261, 1971); print "tStamp=". date("l Y-m-d H:i:s T I", $tStamp). "\n"; $strtotime_tstamp = strtotime("Friday", $tStamp); print "result=".date("l Y-m-d H:i:s T I", $strtotime_tstamp)."\n"; print "wanted=Friday 00:00:00\n\n"; $tz="Pacific/Enderbury"; print "TZ=$tz\n"; putenv("TZ=$tz"); $tStamp = mktime (17, 17, 17, 1, 8760, 1971); print "tStamp=". date("l Y-m-d H:i:s T I", $tStamp). "\n"; $strtotime_tstamp = strtotime("Sunday", $tStamp); print "result=".date("l Y-m-d H:i:s T I", $strtotime_tstamp)."\n"; print "wanted=Sunday 00:00:00\n\n"; $tz="Pacific/Kiritimati"; print "TZ=$tz\n"; putenv("TZ=$tz"); $tStamp = mktime (17, 17, 17, 1, 8760, 1971); print "tStamp=". date("l Y-m-d H:i:s T I", $tStamp). "\n"; $strtotime_tstamp = strtotime("Sunday", $tStamp); print "result=".date("l Y-m-d H:i:s T I", $strtotime_tstamp)."\n"; print "wanted=Sunday 00:00:00\n\n"; ?> =================================================================== Output with the 5.1.x-dev CVS snapshot from 200509050430 on a Linux system: =================================================================== ludo:~/tmp/php-5.1-dev# php5-200509050430/sapi/cli/php my-bugs/bug33414/win32-wrong-days.php TZ=Pacific/Kwajalein tStamp=Friday 1993-08-13 17:17:17 KWAT 0 result=Saturday 1993-08-21 00:00:00 MHT 0 wanted=Friday 00:00:00 TZ=Pacific/Enderbury tStamp=Sunday 1994-12-25 17:17:17 PHOT 0 result=Monday 1995-01-02 00:00:00 PHOT 0 wanted=Sunday 00:00:00 TZ=Pacific/Kiritimati tStamp=Sunday 1994-12-25 17:17:17 LINT 0 result=Monday 1995-01-02 00:00:00 LINT 0 wanted=Sunday 00:00:00 ludo:~/tmp/php-5.1-dev# =================================================================== ------------------------------------------------------------------------ [2005-09-01 14:42:49] [EMAIL PROTECTED] This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. ------------------------------------------------------------------------ [2005-07-06 06:14:20] nickj-phpbugs at nickj dot org Most of the test cases are fixed in php5-200507060230 (including the 3 possible regressions listed above from bug #20382). Just the following 3 seem to be giving incorrect results now (found after doing another exhaustive check on a win32 system, and confirming the results are also incorrect on a Linux system): <?php $tz="Pacific/Kwajalein"; print "TZ=$tz\n"; putenv("TZ=$tz"); $tStamp = mktime (17, 17, 17, 1, 8261, 1971); print "tStamp=". date("l Y-m-d H:i:s T I", $tStamp). "\n"; $strtotime_tstamp = strtotime("Friday", $tStamp); print "result=".date("l Y-m-d H:i:s T I", $strtotime_tstamp)."\n"; print "wanted=Friday 00:00:00\n\n"; $tz="Pacific/Enderbury"; print "TZ=$tz\n"; putenv("TZ=$tz"); $tStamp = mktime (17, 17, 17, 1, 8760, 1971); print "tStamp=". date("l Y-m-d H:i:s T I", $tStamp). "\n"; $strtotime_tstamp = strtotime("Sunday", $tStamp); print "result=".date("l Y-m-d H:i:s T I", $strtotime_tstamp)."\n"; print "wanted=Sunday 00:00:00\n\n"; $tz="Pacific/Kiritimati"; print "TZ=$tz\n"; putenv("TZ=$tz"); $tStamp = mktime (17, 17, 17, 1, 8760, 1971); print "tStamp=". date("l Y-m-d H:i:s T I", $tStamp). "\n"; $strtotime_tstamp = strtotime("Sunday", $tStamp); print "result=".date("l Y-m-d H:i:s T I", $strtotime_tstamp)."\n"; print "wanted=Sunday 00:00:00\n\n"; ?> Output is: =========================================== ludo:~/tmp/php-5.1-dev# php5-200507060230/sapi/cli/php bug33414/win32-wrong-days.php TZ=Pacific/Kwajalein tStamp=Friday 1993-08-13 17:17:17 KWAT 0 result=Saturday 1993-08-21 00:00:00 MHT 0 wanted=Friday 00:00:00 TZ=Pacific/Enderbury tStamp=Sunday 1994-12-25 17:17:17 PHOT 0 result=Monday 1995-01-02 00:00:00 PHOT 0 wanted=Sunday 00:00:00 TZ=Pacific/Kiritimati tStamp=Sunday 1994-12-25 17:17:17 LINT 0 result=Monday 1995-01-02 00:00:00 LINT 0 wanted=Sunday 00:00:00 ludo:~/tmp/php-5.1-dev# =========================================== ------------------------------------------------------------------------ [2005-06-22 11:06:31] nickj-phpbugs at nickj dot org Sorry, one further update - I think it would be better if my test script printed out the exact expected results, rather than just testing for the correct day. The reason that I say this is that I am seeing a possible regression of bug #20382, not just for the Vienna timezone, but for 2 other timezones as well. I.e. when I run these commands: ./get-and-build-php-5.1-dev 200506220830 cd php5-200506220830 # Run the date-related tests: TEST_PHP_EXECUTABLE=sapi/cli/php sapi/cli/php run-tests.php ../bug33414/bug33414.phpt ext/date/tests/*.phpt # Can then see the output of bug20382-2 with: diff -u ext/date/tests/bug20382-2.exp ext/date/tests/bug20382-2.out Then the diff shows this: ================================================== ludo:~/tmp/php-5.1-dev/php5-200506220830# # Can then see the output of bug20382-2 with: ludo:~/tmp/php-5.1-dev/php5-200506220830# diff -u ext/date/tests/bug20382-2.exp ext/date/tests/bug20382-2.out --- ext/date/tests/bug20382-2.exp Wed Jun 22 18:58:14 2005 +++ ext/date/tests/bug20382-2.out Wed Jun 22 18:58:14 2005 @@ -105,17 +105,17 @@ America/Buenos_Aires ts = Monday 1974-09-30 17:17:17 ART -result = Monday 1974-10-07 00:00:00 ART +result = Monday 1974-10-07 01:00:00 ARST wanted = Monday 00:00:00 America/Rosario ts = Monday 1974-09-30 17:17:17 ART -result = Monday 1974-10-07 00:00:00 ART +result = Monday 1974-10-07 01:00:00 ARST wanted = Monday 00:00:00 Europe/Vienna ts = Monday 1980-03-31 17:17:17 CET -result = Monday 1980-04-07 00:00:00 CEST +result = Sunday 1980-04-06 23:00:00 CET wanted = Monday 00:00:00 Asia/Baku ludo:~/tmp/php-5.1-dev/php5-200506220830# ================================================== I.e. Either not getting the expected results in America/Buenos_Aires and America/Rosario, as well as Vienna, or the "--EXPECT--" portion of the test is wrong. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/33414 -- Edit this bug report at http://bugs.php.net/?id=33414&edit=1
