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Table B-1 shows the tokens that are recognized as names of months.
Table B-1. Month Names
| Month | Abbreviations |
|---|---|
| January | Jan |
| February | Feb |
| March | Mar |
| April | Apr |
| May | |
| June | Jun |
| July | Jul |
| August | Aug |
| September | Sep, Sept |
| October | Oct |
| November | Nov |
| December | Dec |
Table B-2 shows the tokens that are recognized as names of days of the week.
Table B-2. Day of the Week Names
| Day | Abbreviations |
|---|---|
| Sunday | Sun |
| Monday | Mon |
| Tuesday | Tue, Tues |
| Wednesday | Wed, Weds |
| Thursday | Thu, Thur, Thurs |
| Friday | Fri |
| Saturday | Sat |
Table B-3 shows the tokens that serve various modifier purposes.
Table B-3. Date/Time Field Modifiers
| Identifier | Description |
|---|---|
| ABSTIME | Ignored |
| AM | Time is before 12:00 |
| AT | Ignored |
| JULIAN, JD, J | Next field is Julian Day |
| ON | Ignored |
| PM | Time is on or after 12:00 |
| T | Next field is time |
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.
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