Public holidays
1421, USA, Hawaii
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, January 1, 1421 | New Year's Day |
| 2 | Thursday, February 22, 1421 | Washington's Birthday |
| 3 | Monday, March 26, 1421 | Seward's Day/Prince Jonah Kuhio Kalanianaole Day |
| Friday, March 30, 1421 | César Chávez Day (observance)/Good Friday | |
| 4 | Wednesday, May 30, 1421 | Memorial Day |
| 5 | Monday, June 11, 1421 | King Kamehameha I Day |
| 6 | Wednesday, July 4, 1421 | Independence Day |
| 7 | Friday, August 17, 1421 | Statehood Day |
| 8 | Monday, September 3, 1421 | Labor Day |
| 9 | Tuesday, December 25, 1421 | Christmas |