December 1991 Holidays
| Holidays December, 1991 | Week Day | Date |
| Cyber Monday | Monday | December 2, 1991 |
| Pearl Harbor Day | Saturday | December 7, 1991 |
| Feast of the Immaculate Conception | Sunday | December 8, 1991 |
| Christmas Eve | Tuesday | December 24, 1991 |
| Christmas Day | Wednesday | December 25, 1991 |
| New Year's Eve | Tuesday | December 31, 1991 |