Public holidays
1640, USA, Texas
| # | Date | Public holiday |
|---|---|---|
| 1 | Sunday, January 1, 1640 | New Year's Day |
| Monday, January 2, 1640 | New Year's Day (observance) | |
| 2 | Thursday, January 19, 1640 | Confederate Heroes Day |
| 3 | Wednesday, February 22, 1640 | Washington's Birthday |
| Friday, March 30, 1640 | César Chávez Day (observance) | |
| 4 | Saturday, March 31, 1640 | César Chávez Day |
| 5 | Friday, April 6, 1640 | Good Friday |
| 6 | Wednesday, May 30, 1640 | Memorial Day |
| 7 | Wednesday, July 4, 1640 | Independence Day |
| 8 | Monday, August 27, 1640 | Lyndon Baines Johnson Day |
| 9 | Monday, September 3, 1640 | Labor Day |
| 10 | Monday, December 24, 1640 | Christmas Eve |
| 11 | Tuesday, December 25, 1640 | Christmas |
| 12 | Wednesday, December 26, 1640 | December 26 |