1780 Holidays and Events in Poland
| Additional Information | Date | Name |
|---|---|---|
| 1/1/1780, Sat | New Year's Day | |
| 3/19/1780, Sun | Palm Sunday | |
| 3/26/1780, Sun | Easter | |
| 3/27/1780, Mon | Easter Monday | |
| 5/1/1780, Mon | May Day / Labor Day | |
| 5/3/1780, Wed | Constitution Day | |
| 5/25/1780, Thu | Corpus Christi | |
| 5/25/1780, Thu | Whit Sunday | |
| 8/15/1780, Tue | Assumption / Polish Army Day | |
| 11/1/1780, Wed | All Saints' Day | |
| 11/11/1780, Sat | National Independence Day | |
| 12/24/1780, Sun | Christmas Eve | |
| 12/25/1780, Mon | Christmas Day | |
| 12/26/1780, Tue | Christmas - 2nd Day | |
| 12/31/1780, Sun | New Year's Eve |