From: "Jeffrey R. Carter" <spam.jrcarter.not@nospam.acm.org>
Subject: Re: Newbie Q: How to program in UTC (time/calendar) ?
Date: Mon, 30 Mar 2009 16:52:26 GMT
Date: 2009-03-30T16:52:26+00:00 [thread overview]
Message-ID: <eN6Al.38248$DP1.27599@attbi_s22> (raw)
In-Reply-To: <8aad6593-efb8-441f-9eac-27cf2fe7a124@v38g2000yqb.googlegroups.com>
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 16:52 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 [this message]
2009-03-30 19:34 ` reinkor
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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