Public holidays
1780, USA, Hawaii
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, 1 January 1780 | New Year's Day |
| 2 | Tuesday, 22 February 1780 | Washington's Birthday |
| 3 | Friday, 24 March 1780 | Good Friday |
| 4 | Sunday, 26 March 1780 | Prince Jonah Kuhio Kalanianaole Day |
| Monday, 27 March 1780 | Seward's Day/Prince Jonah Kuhio Kalanianaole Day (observance) | |
| 5 | Tuesday, 30 May 1780 | Memorial Day |
| 6 | Sunday, 11 June 1780 | King Kamehameha I Day |
| Monday, 12 June 1780 | King Kamehameha I Day (observance) | |
| 7 | Tuesday, 4 July 1780 | Independence Day |
| 8 | Friday, 18 August 1780 | Statehood Day |
| 9 | Monday, 4 September 1780 | Labor Day |
| 10 | Tuesday, 7 November 1780 | Election Day |
| 11 | Monday, 25 December 1780 | Christmas |