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From: "REH" <spamjunk@stny.rr.com>
Newsgroups: comp.lang.ada
Subject: Re: Advice on Calendar.Time
Date: 8 Nov 2005 09:30:01 -0800
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Date: 2005-11-08T09:30:01-08:00
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Larry Kilgallen wrote:
> In article <1131465873.702910.143400@g43g2000cwa.googlegroups.com>, "REH" <spamjunk@stny.rr.com> writes:
> > Ok, I have another problem:
> >
> > We have functions that convert between our mission time and
> > Ada.Calendar.Time.  The current implementation depends on the internal
> > representation of Time.  This is a pain because it must be rewritten
> > everytime we move to a new compile (or even a new version of the same).
> >  Is there a way to do this in Standard Ada?  Our mission time is the
> > number of seconds since an arbitrarily choosen epoch (1/1/1998) GMT.
> > We originally used Time_Of, but had problems because Time_Of was using
> > local time and did DST adjustments which were undesirable.
>
>  function Time_Of
>      (Year    : Year_Number;
>       Month   : Month_Number;
>       Day     : Day_Number;
>       Seconds : Day_Duration := 0.0)
>       return    Time;
>
> I don't see how Time_Of would be "using" some daylight savings time
> algorithm unless that is what you fed it.
>
> If your operating system is set to make daylight savings time adjustments,
> you should change that setting.

Well, it does.  Even the compilers' documentation say it does.