DATEFORMAT And TIMEFORMAT Strings - Amazon Redshift

DATEFORMAT and TIMEFORMAT strings - Amazon RedshiftDocumentationAmazon RedshiftDatabase Developer GuideExample

Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the blog post .

The COPY command uses the DATEFORMAT and TIMEFORMAT options to parse date and time values in your source data. DATEFORMAT and TIMEFORMAT are formatted strings that must match the format of your source data's date and time values. For example, a COPY command loading source data with the date value Jan-01-1999 must include the following DATEFORMAT string:

COPY ... DATEFORMAT AS 'MON-DD-YYYY'

For more information on managing COPY data conversions, see Data conversion parameters.

DATEFORMAT and TIMEFORMAT strings can contain datetime separators (such as '-', '/', or ':'), as well the datepart and timepart formats in the following table.

Note

If you can't match the format of your date or time values with the following dateparts and timeparts, or if you have date and time values that use formats different from each other, use the 'auto' argument with the DATEFORMAT or TIMEFORMAT parameter. The 'auto' argument recognizes several formats that aren't supported when using a DATEFORMAT or TIMEFORMAT string. For more information, see Using automatic recognition with DATEFORMAT and TIMEFORMAT.

Datepart or timepart	Meaning
YY	Year without century
YYYY	Year with century
MM	Month as a number
MON	Month as a name (abbreviated name or full name)
DD	Day of month as a number
HH or HH24	Hour (24-hour clock) Note In DATETIME format strings for SQL functions, HH is the same as HH12. However, in DATEFORMAT and TIMEFORMAT strings for COPY, HH is the same as HH24.
HH12	Hour (12-hour clock)
MI	Minutes
SS	Seconds
AM or PM	Meridian indicator (for 12-hour clock)

The default date format is YYYY-MM-DD. The default timestamp without time zone (TIMESTAMP) format is YYYY-MM-DD HH:MI:SS. The default timestamp with time zone (TIMESTAMPTZ) format is YYYY-MM-DD HH:MI:SSOF, where OF is the offset from UTC (for example, -8:00. You can't include a time zone specifier (TZ, tz, or OF) in the timeformat_string. The seconds (SS) field also supports fractional seconds up to a microsecond level of detail. To load TIMESTAMPTZ data that is in a format different from the default format, specify 'auto'.

Following are some sample dates or times you can encounter in your source data, and the corresponding DATEFORMAT or TIMEFORMAT strings for them.

Example of source data date or time	DATEFORMAT or TIMEFORMAT Syntax
03/31/2003	DATEFORMAT AS 'MM/DD/YYYY'
March 31, 2003	DATEFORMAT AS 'MON DD, YYYY'
03.31.2003 18:45:05 03.31.2003 18:45:05.123456	TIMEFORMAT AS 'MM.DD.YYYY HH:MI:SS'

Example

For an example of using TIMEFORMAT, see Load a timestamp or datestamp.

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