Public holidays
1840, USA, Hawaii
| # | Date | Public holiday |
|---|---|---|
| 1 | Wednesday, January 1, 1840 | New Year's Day |
| 2 | Saturday, February 22, 1840 | Washington's Birthday |
| 3 | Thursday, March 26, 1840 | Prince Jonah Kuhio Kalanianaole Day |
| 4 | Friday, April 17, 1840 | Good Friday |
| 5 | Saturday, May 30, 1840 | Memorial Day |
| 6 | Thursday, June 11, 1840 | King Kamehameha I Day |
| Friday, July 3, 1840 | Independence Day (observance) | |
| 7 | Saturday, July 4, 1840 | Independence Day |
| 8 | Friday, August 21, 1840 | Statehood Day |
| 9 | Monday, September 7, 1840 | Labor Day |
| 10 | Tuesday, November 3, 1840 | Election Day |
| 11 | Friday, December 25, 1840 | Christmas |