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help / color / mirror / Atom feedFrom: Steve Crawford <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: Re: Indicated Epoch 0 is incorrect
Date: Tue, 7 Jun 2016 08:14:04 -0700
Message-ID: <CAEfWYyzs6sVF1ftryEwNfwpx7pzsjYv=7=dPXDUkQxx22uXDqA@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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The docs are correct. When you convert a string to a timestamp with time
zone it will interpret the string in *your* time zone which is apparently
offset from UTC.
Try:
select extract(epoch from timestamp with time zone '1970-01-01
00:00:00-00');
or
select extract(epoch from timestamp with time zone '1970-01-01 00:00:00
UTC');
Note the explicit definition of timezone offset of zero or time zone of UTC.
Cheers,
Steve
On Fri, Jun 3, 2016 at 4:44 PM, <[email protected]> wrote:
> The following documentation comment has been logged on the website:
>
> Page: https://www.postgresql.org/docs/9.1/static/functions-datetime.html
> Description:
>
> Per /docs/current/static/functions-datetime.html (and earlier), epoch is
> defined as:
>
> "For date and timestamp values, the number of seconds since 1970-01-01
> 00:00:00 UTC".
>
> The correct value to obtain 0 is as follows:
>
> SELECT EXTRACT(EPOCH FROM TIMESTAMP WITH TIME ZONE '1970-01-01
> 8:00:00.0')
>
> --
> Sent via pgsql-docs mailing list ([email protected])
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-docs
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To: [email protected]
Cc: [email protected], [email protected]
Subject: Re: Indicated Epoch 0 is incorrect
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