Converting RFC 2822 "timestamp" to timestampz
am 12.10.2005 21:14:32 von mradev
I have a RFC2822 timestamp (example: Thu, 21 Dec 2000 16:01:07 +0200).
I need to convert it to "timestampz" but I stumbled on the timezone
conversion. The code follows:
$timestamp =3D date( 'Y-m-d H:i:s O', strtotime( $rfc2822_timestamp) );
Unfortunately the supported formats for timezone in PHP and PostgreSQL
differs. Pgsql requires zone name or offset in the format "H:M"
(http://www.postgresql.org/docs/8.0/static/datatype-datetime .html#DATATYPE-=
TIMEZONE-TABLE).
The "date" function in PHP (versions up to 5.0) supports the following
two formats: "Difference to Greenwich time (GMT) in hours. Example:
+0200" and "Timezone offset in seconds: -43200 through 43200".
Of course I could play a little bit with last number (converting it to
"hours:minutes") but it seems unnatural. Am I missing something?
--
Milen A. Radev
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Re: Converting RFC 2822 "timestamp" to timestampz
am 12.10.2005 21:31:39 von Steve Crawford
On Wednesday 12 October 2005 12:14, Milen A. Radev wrote:
> I have a RFC2822 timestamp (example: Thu, 21 Dec 2000 16:01:07
> +0200). I need to convert it to "timestampz" but I stumbled on the
> timezone conversion....
The following works for me:
# select 'Thu, 21 Dec 2000 16:01:07 +0200'::timestamptz;
timestamptz
------------------------
2000-12-21 06:01:07-08
Cheers,
Steve
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Re: Converting RFC 2822 "timestamp" to timestampz
am 12.10.2005 22:01:03 von mradev
On 12/10/05, Steve Crawford wrote:
> On Wednesday 12 October 2005 12:14, Milen A. Radev wrote:
> > I have a RFC2822 timestamp (example: Thu, 21 Dec 2000 16:01:07
> > +0200). I need to convert it to "timestampz" but I stumbled on the
> > timezone conversion....
>
> The following works for me:
>
> # select 'Thu, 21 Dec 2000 16:01:07 +0200'::timestamptz;
>
> timestamptz
> ------------------------
> 2000-12-21 06:01:07-08
You are so right! I was confused by another bug in my query to believe
that the RFC2822 format is unacceptable.
--
Milen A. Radev
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