Re: Postgres and timezones

2016-01-20 12:10 GMT+01:00 Steve Rogerson <steve(dot)pg(at)yewtc(dot)demon(dot)co(dot)uk>:

> Hi, this is wrong:
>
> # select to_char('2016-01-20 00:00'::timestamp at time zone
> 'Europe/Lisbon',
> 'TZ');
> to_char
> ---------
> GMT
> (1 row)
>
>
> It should be WET, "Western European Time". Is there something I'm doing
> wrong?
>
>
Actually your input is now interpretted as being timezone Europe/Lisbon but
to_char still converts it to a string for the timezone that is currently
set on your connection. When I do (my connection is set to
Europe/Amsterdam)

select to_char('2016-01-20 00:00'::timestamp at time zone 'Europe/Lisbon',
'HH:MI TZ');

I get 01:00 CET because it has converted it from Europe/Lisbon to CET.

You can adjust the timezone which is used for display by to_char with

set timezone='Europe/Lisbon';

Regards,
Eelke