From: reinkor <reinkor@gmail.com>
Subject: Re: Newbie Q: How to program in UTC (time/calendar) ?
Date: Mon, 30 Mar 2009 12:34:48 -0700 (PDT)
Date: 2009-03-30T12:34:48-07:00 [thread overview]
Message-ID: <d1aa1484-e61e-4cf5-8fea-2a6e90ed3d8b@f14g2000yqm.googlegroups.com> (raw)
In-Reply-To: eN6Al.38248$DP1.27599@attbi_s22
On 30 Mar, 18:52, "Jeffrey R. Carter"
<spam.jrcarter....@nospam.acm.org> wrote:
> reinkor wrote:
> > Time1 := Value("1970-01-01 00:00:00");
> > Time2 := Ada.Calendar.Time_Of(1970,1,1,0.0);
>
> > Put("Time1: ");Put(Image(Time1));New_Line;
> > Put("Time2: ");Put(Image(Time2));New_Line;
>
> > Put("UTC_Time_Offset: ");Put(Integer(UTC_Time_Offset),8);
>
> > This gives the following output on my computer:
>
> > Time1: 1970-01-01 00:00:00
> > Time2: 1969-12-31 23:00:00
> > UTC_Time_Offset: 120
>
> > The first line I now understand reflects that both "Value"
> > and "Image" has parameter Time_Zone = 0 (UTC). I.e. "Time1"
> > can be understood to have value 1970-01-01 00:00:00 (UTC).
> > "But "Time2" is 1970-01-01 00:00:00 *minus* one hour (only), and
> > UTC_Time_Offset = 120 (2 hours).
>
> I suspect you've recently gone on
> daylight-savings/summer/whatever-it's-called-where-you-are time, which is UTC
> +02:00 (120 mins), but on 1970 Jan 01 you were on regular time, which is UTC +01:00.
>
> --
> Jeff Carter
> "I don't know why I ever come in here. The
> flies get the best of everything."
> Never Give a Sucker an Even Break
> 102
next prev parent reply other threads:[~2009-03-30 19:34 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-24 8:51 Newbie Q: How to program in UTC (time/calendar) ? reinkor
2009-03-24 9:18 ` Dmitry A. Kazakov
2009-03-24 10:07 ` Martin
2009-03-24 10:55 ` reinkor
2009-03-24 12:49 ` Martin
2009-03-24 18:53 ` Dirk Heinrichs
2009-03-24 23:59 ` Martin
2009-03-25 10:21 ` reinkor
2009-03-25 15:28 ` tmoran
2009-03-25 21:55 ` sjw
2009-03-26 1:38 ` tmoran
2009-03-26 20:58 ` sjw
2009-03-27 12:52 ` reinkor
2009-03-27 16:58 ` Jeffrey R. Carter
2009-03-30 11:27 ` reinkor
2009-03-30 16:47 ` Jeffrey R. Carter
2009-03-30 12:37 ` reinkor
2009-03-30 13:45 ` John B. Matthews
2009-03-30 16:52 ` Jeffrey R. Carter
2009-03-30 19:34 ` reinkor [this message]
2009-03-30 19:44 ` reinkor
2009-04-04 2:22 ` Brian Gaffney
2009-03-24 11:29 ` Jacob Sparre Andersen
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