Обсуждение: time zone - timestamp

Hello,

I created a table with:
"create table wrf (region integer, created_on timestamp(0) with time
zone, valid_for timestamp(0) with time zone, type varchar(5), max float,
min float, avg float, stddev float, var float);"

then i inserted data with:
"insert into wrf values ( $i, '2005-08-02 03:00:00 +00', now(), 'T2m',
(select max(tmp) from tmp_point where intersects(tmp_point.the_geom,
(select the_geom from regions where cat=$i))),.........."

then now I selected the columns created_on and valid_for:
"select created_on, valif_for from wrf;"

 Result: 2005-08-02 05:00:00+02 | 2005-11-10 14:16:41+01

Now, my question:
Why time zone "+02" in "2005-08-02 05:00:00+02"?  And why "+01" in
"2005-11-10 14:16:41+01"?
I think +01 depends on my system time. But why +02?

Greetings
Maik

am  10.11.2005, um 14:58:14 +0100 mailte Maik Trömel folgendes:
> Now, my question:
> Why time zone "+02" in "2005-08-02 05:00:00+02"?  And why "+01" in
> "2005-11-10 14:16:41+01"?

2005-08-02: summertime
2005-11-10: normal time


HTH, Andreas
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Andreas Kretschmer    (Kontakt: siehe Header)
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Maik Trömel wrote:
> Result: 2005-08-02 05:00:00+02 | 2005-11-10 14:16:41+01
>
> Now, my question:
> Why time zone "+02" in "2005-08-02 05:00:00+02"?  And why "+01" in
> "2005-11-10 14:16:41+01"?
> I think +01 depends on my system time. But why +02?

Summer-time or daylight-saving-time shift. Your clocks go back somewhere
between August and November.

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   Richard Huxton
   Archonet Ltd