I'm not at my dev station to check, but what about: SELECT myTime AT TIME ZONE 'UTC' FROM theTable; Then try: SELECT myTime AT TIME ZONE 'UTC' FROM theTable WHERE myTime = '19:30:00-00'; Or: SELECT myTime AT TIME ZONE 'UTC' FROM theTable WHERE myTime = TIME WITH TIME ZONE '19:30:00-00'; If that doesn't work you might try extracting epoch to convert the time to an integer: SELECT myDate, myTime FROM theTable where EXTRACT(EPOCH FROM myTime) = EXTRACT(EPOCH FROM TIME WITH TIME ZONE '19:30:00-00'); Brandon Aiken -----Original Message----- From: Harry Hehl [mailto:Harry.Hehl@xxxxxxxxxxxxxx] Sent: Mon 9/25/2006 9:21 PM To: Brandon Aiken Subject: RE: [GENERAL] Timestamp with timezone query Hi Brandon, >>postgres=# select time with time zone '00:30:00-05' at time zone 'utc'; This is not quite when I am doing. The time I get is already in UTC. This is what I have... date | timestamp(6) with time zone | time | time(6) with time zone | select date,time from test where date = '2000-02-10 19:30:00' at time zone 'utc'; date | time ------------------------+------------- 2000-02-11 00:30:00-05 | 00:30:00-05 I get date and time from a remote client in UTC. In the above case (which works) '2000-02-10 19:30:00' is UTC, so the query returns the desired result. I have to do the same thing with time. So I tried... select date,time from test where time = '19:30:00' at time zone 'utc'; ERROR: invalid input syntax for type timestamp with time zone: "19:30:00" select date,time from test where time = time with time zone '19:30:00' at time zone 'utc'; select date,time from test where time = time with time zone '19:30:00-00' at time zone 'utc'; Both return... date | time ------+------ (0 rows) This get close (I think) select cast( ('2000-01-01 19:30:00' at time zone 'utc') as time ); timezone ---------- 00:30:00 but when used in a table query... select date,time from test where time = cast( ('2000-01-01 19:30:00' at time zone 'utc') as time ); date | time ------+------ (0 rows) Any ideas would be much appreciated. Thanks Harry -----Original Message----- From: Brandon Aiken [mailto:BAiken@xxxxxxxxxxxxxxx] Sent: Mon 9/25/2006 5:42 PM To: Harry Hehl Subject: RE: [GENERAL] Timestamp with timezone query Hm? Works for me: postgres=# select time with time zone '00:30:00-05' at time zone 'utc'; timezone ------------- 05:30:00+00 (1 row) What are you trying to do with the query? -- Brandon Aiken CS/IT Systems Engineer -----Original Message----- From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Harry Hehl Sent: Monday, September 25, 2006 5:34 PM To: pgsql-general@xxxxxxxxxxxxxx Subject: Re: [GENERAL] Timestamp with timezone query Thanks, that does it. select * from table where column = '2006-02-10 19:30:00' AT TIME ZONE 'utc'; I also have a TIME WITH TIMEZONE column that I have to do the same thing with but AT TIME ZONE can't be used directly. I tried several approaches but I either get incorrect results or syntax errors. Is there a way to do the same thing with TIME columns? -----Original Message----- From: Brandon Aiken [mailto:BAiken@xxxxxxxxxxxxxxx] Sent: Monday, September 25, 2006 11:39 AM To: Harry Hehl; pgsql-general@xxxxxxxxxxxxxx Subject: RE: [GENERAL] Timestamp with timezone query Use the AT TIME ZONE construct: http://www.postgresql.org/docs/8.1/interactive/functions-datetime.html#F UNCTIONS-DATETIME-ZONECONVERT -- Brandon Aiken CS/IT Systems Engineer -----Original Message----- From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Harry Hehl Sent: Monday, September 25, 2006 11:06 AM To: pgsql-general@xxxxxxxxxxxxxx Subject: [GENERAL] Timestamp with timezone query Hello, I have a table with TIMESTAMP WITH TIMEZONE column. I would like to query for a timestamp using a different timezone. For example if a column contains '2006-02-11 00:30:00-05' select * from table where column='2006-02-10 19:30:00+00' would return the column containing '2006-02-11 00:30:00-05'.