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Timestamp Data Types

timestamp and timestamp with time zone data expresses a date and time in UTC.

timestamp info

Detail Info
Quick Syntax TIMESTAMP WITH TIME ZONE '2007-02-01 15:04:05+06'
Size 8 bytes
Catalog name pg_catalog.timestamp
OID 1083
Min value 4713 BC
Max value 294276 AD
Resolution 1 microsecond / 14 digits

timestamp with time zone info

Detail Info
Quick Syntax TIMESTAMPTZ '2007-02-01 15:04:05+06'
Aliases timestamp with time zone
Size 8 bytes
Catalog name pg_catalog.timestamptz
OID 1184
Min value 4713 BC
Max value 294276 AD
Resolution 1 microsecond / 14 digits

Syntax

TIMESTAMP TIMESTAMPTZ ' date_str T time_str + - tz_offset '
Field Use
WITH TIME ZONE Apply the tz_offset field. If not specified, don’t.
TIMESTAMPTZ Apply the tz_offset field.
date_str date_str
time_str A string representing a time of day in H:M:S.NS format.
tz_offset The timezone’s distance, in hours, from UTC.

Details

Valid casts

In addition to the casts listed below, timestamp and timestamptz can be cast to and from each other implicitly.

From timestamp or timestamptz

You can cast timestamp or timestamptz to:

To timestamp or timestamptz

You can cast the following types to timestamp or timestamptz:

Valid operations

timestamp and timestamp with time zone data (collectively referred to as timestamp/tz) supports the following operations with other types.

Operation Computes
date + interval timestamp/tz
date - interval timestamp/tz
date + time timestamp/tz
timestamp/tz + interval timestamp/tz
timestamp/tz - interval timestamp/tz
timestamp/tz - timestamp/tz interval

Examples

Return timestamp

SELECT TIMESTAMP '2007-02-01 15:04:05' AS ts_v;
        ts_v
---------------------
 2007-02-01 15:04:05

Return timestamp with time zone

SELECT TIMESTAMPTZ '2007-02-01 15:04:05+06' AS tstz_v;
         tstz_v
-------------------------
 2007-02-01 09:04:05 UTC
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