On Fri, Nov 4, 2016 at 2:30 AM, Peter Hunkeler <p...@gmx.ch> wrote: > >'TZ=CET-1CEST,M3.5.0/2:00,M10.5.0/3:00' > > > >http://www.ibm.com/support/knowledgecenter/SSLTBW_2.1.0/ > com.ibm.zos.v2r1.cbcpx01/cbc1p2559.htm > " If this daylight savings time rule is omitted altogether, the values in > the rule default to the standard American daylight savings time rules > starting at 02:00:00 the second Sunday in March and ending at 02:00:00 the > first Sunday in November." > > > > > And from the same description you can see that the actual strings being > used to name the standard and the DST periods (CET and CEST in the example > above) have no meaning to the system. You can set them to anything you want > without influencing the behaviour. > > > The strings are only meant to show something meaningful to users. > > > The first string is mandatory. The second string, in addition to be meant > for the user, is also a flag to tell the system to apply DST according to > the standard rules (mentione above), or by the rules specified. > > > So, with > > > TZ=WINTER-1SUMMER,M3.5.0/2:00,M10.5.0/3:00 > date '%a %b %e %T %Z %Y' > > > will display > Fr Nov 4 08:26:17 WINTER 2016 > today, but had displayed > Fr Oct 28 08:26:17 SUMMER 2016 > last week. > > > --Peter Hunkeler >
Another indication that, at least at the time this was done, IBM was not overly concerned with making z/OS UNIX be acceptable to the "real" UNIX community. They just wanted to stamp "POSIX compliant" on z/OS for marketing purposes. Aside: I really appreciate what Mr. Schoen of IBM has done to help make z/OS UNIX more useful (bpxwunix & bpxwdyn come to mind). -- Heisenberg may have been here. Unicode: http://xkcd.com/1726/ Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
