Public holidays
1621, USA, Hawaii
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1621 | New Year's Day |
| 2 | Monday, 18 January 1621 | Martin Luther King Day |
| 3 | Monday, 15 February 1621 | Washington's Birthday/Susan B. Anthony Day |
| 4 | Friday, 26 March 1621 | Prince Jonah Kuhio Kalanianaole Day |
| 5 | Friday, 9 April 1621 | Good Friday |
| 6 | Monday, 31 May 1621 | Memorial Day |
| 7 | Friday, 11 June 1621 | King Kamehameha I Day |
| 8 | Sunday, 4 July 1621 | Independence Day |
| Monday, 5 July 1621 | Independence Day (observance) | |
| 9 | Friday, 20 August 1621 | Statehood Day |
| 10 | Monday, 6 September 1621 | Labor Day |
| 11 | Thursday, 11 November 1621 | Veterans Day |
| 12 | Thursday, 25 November 1621 | Thanksgiving |
| Friday, 24 December 1621 | Christmas (observance)/Christmas Eve | |
| 13 | Saturday, 25 December 1621 | Christmas |
| Friday, 31 December 1621 | New Year's Day (observance) |