On Mon, 10 Mar 2008 14:23:40 -0300, Shmuel Metz (Seymour J.) wrote:
>
>As long as TZ is set properly, an OS/2 or Unix system will automatically
>switch to and from DST.
>
There's a paradigm shift required here. The core UNIX function,
localtime() does not "automatically switch to and from DST."
Rather, if localtime() is called with the same argument and
with the environment variables having the same values, it will
produce identical correct results whether Daylight Saving or
Standard time is in effect.
I believe this is in contrast to the z/OS STCKCONV service.
however, I can not find in the docmentation ("z/OS V1R7.0 MVS
Assembler Services Reference IAR-XCT") whether STCKCONV
returns local time or GMT nor how Daylight Saving and Leap
Seconds are handled (possibly in accord with the table in
the PoOP?) The programmer ought to be given the choice of
either. Perhaps I'll submit an RCF.
-- gil
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