Karsten Hilbert <Karsten.Hilbert@xxxxxxx> writes: > On Fri, Aug 10, 2007 at 10:11:29AM +0200, Louis-David Mitterrand wrote: >> So if I understand correctly, a timestamp_tz is ... > ... stored as UTC in the backend > ... sent to clients shifted by whatever timezone was > requested by the client by one of several mechanisms: > - "set timezone to ..." used by the client > - "select ... at time zone ..." used by the client > - the server timezone if neither of the above is used The other point to be clear on is that the "shifting" is done according to whatever timezone rule files the server currently has. Since politicians keep changing daylight-savings rules, the same UTC date/time might be displayed differently after an update of the relevant rule file. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq