1 | Wednesday, 1 January 1840 |
New Year's Day |
2 | Monday, 20 January 1840 |
Martin Luther King Day |
3 | Monday, 17 February 1840 |
Washington's Birthday |
4 | Monday, 20 April 1840 |
Patriots' Day |
5 | Monday, 25 May 1840 |
Memorial Day |
6 | Friday, 19 June 1840 |
Juneteenth National Independence Day |
| Friday, 3 July 1840 |
Independence Day (observance) |
7 | Saturday, 4 July 1840 |
Independence Day |
8 | Monday, 7 September 1840 |
Labor Day |
9 | Monday, 12 October 1840 |
Columbus Day |
10 | Wednesday, 11 November 1840 |
Veterans Day |
11 | Thursday, 26 November 1840 |
Thanksgiving |
12 | Friday, 25 December 1840 |
Christmas |