From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Ada.Calendar.Time_Zones
Date: Mon, 4 Aug 2008 11:31:08 +0200
Date: 2008-08-04T11:31:08+02:00 [thread overview]
Message-ID: <1rm26vi0mz4sv.1kfhdnswhcrqa.dlg@40tude.net> (raw)
Does anybody know the meaning of the result returned by UTC_Time_Offset? RM
says:
"Returns, as a number of minutes, the difference between the
implementation-defined time zone of Calendar, and UTC time, at the time
Date."
This is ill-defined. Political time has overlapping intervals in presence
of daylight saving time, when the clock is adjusted backwards.
The overlapping time interval has two differences to the UTC time. So which
one is returned by UTC_Time_Offset?
Furthermore, some intervals are missing in political time. That is when the
clock is adjusted forward. What is the difference then? Unknown_Zone_Error?
P.S. Why not to simply provide Ada.UTC_Time (with conversion to
Ada.Calendar.Time) instead of this mess?
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next reply other threads:[~2008-08-04 9:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-04 9:31 Dmitry A. Kazakov [this message]
2008-08-04 13:56 ` Ada.Calendar.Time_Zones google1
2008-08-04 14:57 ` Ada.Calendar.Time_Zones Dmitry A. Kazakov
2008-08-04 20:56 ` Ada.Calendar.Time_Zones Maciej Sobczak
2008-08-04 22:12 ` Ada.Calendar.Time_Zones Randy Brukardt
2008-08-05 9:10 ` Ada.Calendar.Time_Zones Dmitry A. Kazakov
2008-08-07 2:52 ` Ada.Calendar.Time_Zones Randy Brukardt
2008-08-07 8:27 ` Ada.Calendar.Time_Zones Dmitry A. Kazakov
2008-08-07 22:47 ` Ada.Calendar.Time_Zones Randy Brukardt
2008-08-08 8:48 ` Ada.Calendar.Time_Zones Dmitry A. Kazakov
2008-08-09 2:09 ` Ada.Calendar.Time_Zones Randy Brukardt
2008-08-09 8:04 ` Ada.Calendar.Time_Zones Dmitry A. Kazakov
2008-08-14 0:20 ` Ada.Calendar.Time_Zones Randy Brukardt
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