December 1980 Holidays
| Holidays December, 1980 | Week Day | Date |
| Cyber Monday | Monday | December 1, 1980 |
| Pearl Harbor Day | Sunday | December 7, 1980 |
| Feast of the Immaculate Conception | Monday | December 8, 1980 |
| Christmas Eve | Wednesday | December 24, 1980 |
| Christmas Day | Thursday | December 25, 1980 |
| New Year's Eve | Wednesday | December 31, 1980 |