Обсуждение: Converting RFC 2822 "timestamp" to timestampz

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 = 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

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

On 12/10/05, Steve Crawford <scrawford@pinpointresearch.com> 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