Timezone calculation question

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От Роман Маширов
Тема Timezone calculation question
Дата
Msg-id 49C8B708.9030503@nandu.ru
обсуждение исходный текст
Ответы Re: Timezone calculation question  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-general
Seems I've missed something important about time zones. On my server
i've got local timezone 'W-SU' (Moscow time):

=> show timezone;
 TimeZone
----------
 W-SU

=> select now();
              now
-------------------------------
 2009-03-24 13:23:39.655057+03

Till now all seems ok. Than i'm trying to figure out local time at near
region:

=> select now() at time zone 'UTC+4';
          timezone
----------------------------
 2009-03-24 06:28:30.383373


select now() at time zone 'UTC+3';
          timezone
----------------------------
 2009-03-24 07:24:11.011075

Seems like zone offset been added twice...
Server 8.3.5, OS FreeBSD 7.0-RELEASE

Which way should i get correct local time, when i've got timestamp with
timezone and name of the target timezone?

Thanks beforehand
--
MRJ



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