From: | bubba postgres <bubba(dot)postgres(at)gmail(dot)com> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Is TimeZone applied with TIMESTAMP WITHOUT TIME ZONE and Extract( EPOCH ...)? |
Date: | 2011-03-17 18:32:06 |
Message-ID: | AANLkTi=CDve8EA263PHmwhCsaKGjjs0Be6ZJpG2eQxKW@mail.gmail.com |
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Lists: | pgsql-general |
no.. still confused.
I assume it's storing everythign in UTC.. did I need to specify a timezone
when I inserted?
On Thu, Mar 17, 2011 at 11:24 AM, bubba postgres
<bubba(dot)postgres(at)gmail(dot)com>wrote:
> Looks like a quick search says I need to specify the timezone...
>
>
> On Thu, Mar 17, 2011 at 11:22 AM, bubba postgres <bubba(dot)postgres(at)gmail(dot)com
> > wrote:
>
>>
>> I'm noticing some interesting behavior around timestamp and extract epoch,
>> and it appears that I'm getting a timezone applied somewhere.
>>
>> Specifically, If I do:
>> select EXTRACT( EPOCH FROM '2010-01-31 00:00:00'::TIMESTAMP WITHOUT TIME
>> ZONE ); == 1264924800
>> select EXTRACT( EPOCH FROM '2010-04-01 00:00:00'::TIMESTAMP WITHOUT TIME
>> ZONE ); == 1270105200
>>
>> Now if I do something similar in Java.. using a GregorianCalendar, with
>> "GMT" TimeZone.
>> I get
>> Hello:2010-01-31 00:00:00.000 (UTC)
>> Hello:1264896000000
>>
>> Hello:2010-04-01 00:00:00.000 (UTC)
>> Hello:1270080000000
>>
>> Which gives a difference of 8 and 7 hours respectively, so both a timezone
>> and a DST shift are at work here.
>>
>> Is this the expected behavior of extract epoch, is there a way to get it
>> to always be in GMT?
>>
>>
>>
>>
>>
>
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