Table B-1 shows the tokens that are recognized as names of months.
Table B-1. Month Names
Table B-2 shows the tokens that are recognized as names of days of the week.
Table B-2. Day of the Week Names
Table B-3 shows the tokens that serve various modifier purposes.
Table B-3. Date/Time Field Modifiers
The key word ABSTIME is ignored for historical reasons: In very old releases of PostgreSQL, invalid values of type abstime were emitted as Invalid Abstime. This is no longer the case however and this key word will likely be dropped in a future release.