Public holidays
1940, USA, Oklahoma
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1940 | New Year's Day |
| 2 | Thursday, 22 February 1940 | Washington's Birthday |
| 3 | Thursday, 30 May 1940 | Memorial Day |
| 4 | Thursday, 4 July 1940 | Independence Day |
| 5 | Monday, 2 September 1940 | Labor Day |
| 6 | Monday, 11 November 1940 | Armistice Day |
| 7 | Thursday, 21 November 1940 | Thanksgiving |
| 8 | Friday, 22 November 1940 | Black Friday |
| 9 | Tuesday, 24 December 1940 | Christmas Eve |
| 10 | Wednesday, 25 December 1940 | Christmas |