Re: Timestamp to time_t - Mailing list pgsql-hackers

From Scott Mohekey
Subject Re: Timestamp to time_t
Date
Msg-id a108f5c10909151656q587d24d8jda9a5ea9823a9f1f@mail.gmail.com
Whole thread Raw
In response to Re: Timestamp to time_t  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
List pgsql-hackers
On Wed, Sep 16, 2009 at 2:23 AM, Kevin Grittner <Kevin.Grittner@wicourts.gov> wrote:
Scott Mohekey <scott.mohekey@telogis.com> wrote:
> I think the issue is that we treat TIMESTAMP WITHOUT TIME ZONE as
> TIMESTAMP at GMT. We then convert it to a users local timezone
> within application code.

TIMESTAMP WITHOUT TIME ZONE is stored "raw" and is not considered to
be associated to a time zone until you do so.  It will default to
assigning the time zone set on your server, which is normally your
local time zone.  Unless that's GMT, you will need to be very
careful to always localize the timestamp to GMT before doing
anything with it.

-Kevin

This is exactly what we do. All of our servers are set to GMT time, all times in the database are stored in GMT time, and are converted to a users local time within the application.

Scott Mohekey
Systems/Application Specialist – OnTrack – Telogis, Inc.
www.telogis.com  www.telogis.co.nz 
+1 949 625-4115 ext. 207 (USA)  +64 3339 2825 x207 (NZ)

Leading Global Platform for Location Based Services 
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