Don Poitras wrote:
>
> Jan MOEYERSONS wrote:
> >
> > On Tue, 28 Feb 2012 12:17:46 -0600, Paul Gilmartin <paulgboul...@aim.com>
> > wrote:
> >
> > >Set time zone with tzset().
> > >
> > >Call localtime() then strftime().
> > >
> >
> > I am not sure this will work correctly. The gmtime(), localtime() and
> > mktime() always use the daylight savings situation of the current date, not
> > of the date input to these functions. Which is an error, IMHO.
> >
> > Cheers,
> >
> > Jantje.
>
> For historic local times, you'll need to add some logic to deal with the
> changing start and stop of DST. DST started in 1966 and changed in 2007,
> so if you have a date you want to convert that is in that range, first
> do (for your particular time zone, this example is for the East
> Coast...):
>
> setenv("TZ","EST5EDT,M3.2.0,M11.1.0");
>
> If the year is 2007 or later, be sure to first reset to the current
> value:
>
> setenv("TZ","EST5EDT,M4.1.0,M10.5.0");
>
> Not as nice as TZDATA, but not rocket science.
>
> --
> Don Poitras - zSeries R & D - SAS Institute Inc. - SAS Campus Drive
> mailto:sas...@sas.com (919)531-5637 Fax:677-4444 Cary, NC 27513
Sorry, had those backwards. The new DST starts in March, ends in
November.
--
Don Poitras - zSeries R & D - SAS Institute Inc. - SAS Campus Drive
mailto:sas...@sas.com (919)531-5637 Fax:677-4444 Cary, NC 27513
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