Public holidays
1666, USA, Texas
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, January 1, 1666 | New Year's Day |
| 2 | Tuesday, January 19, 1666 | Confederate Heroes Day |
| 3 | Monday, February 22, 1666 | Washington's Birthday |
| 4 | Wednesday, March 31, 1666 | César Chávez Day |
| 5 | Friday, April 16, 1666 | Good Friday/Emancipation Day |
| 6 | Sunday, May 30, 1666 | Memorial Day |
| 7 | Sunday, July 4, 1666 | Independence Day |
| Monday, July 5, 1666 | Independence Day (observance) | |
| 8 | Friday, August 27, 1666 | Lyndon Baines Johnson Day |
| 9 | Monday, September 6, 1666 | Labor Day |
| Friday, December 24, 1666 | Christmas (observance)/Christmas Eve | |
| 10 | Saturday, December 25, 1666 | Christmas |
| 11 | Sunday, December 26, 1666 | December 26 |
| Friday, December 31, 1666 | New Year's Day (observance) |