1 | Thursday, 1 January 1880 |
New Year's Day |
2 | Monday, 19 January 1880 |
Martin Luther King Day |
| Monday, 16 February 1880 |
Washington's Birthday/Susan B. Anthony Day (observance) |
3 | Friday, 26 March 1880 |
Good Friday/Prince Jonah Kuhio Kalanianaole Day |
4 | Wednesday, 31 March 1880 |
César Chávez Day |
5 | Monday, 26 April 1880 |
Confederate Memorial Day |
6 | Monday, 31 May 1880 |
Memorial Day |
| Friday, 18 June 1880 |
Juneteenth (observance) |
7 | Saturday, 19 June 1880 |
Juneteenth National Independence Day |
8 | Sunday, 4 July 1880 |
Independence Day |
| Monday, 5 July 1880 |
Independence Day (observance) |
9 | Friday, 27 August 1880 |
Lyndon Baines Johnson Day |
10 | Monday, 6 September 1880 |
Labor Day |
11 | Thursday, 11 November 1880 |
Veterans Day |
12 | Thursday, 25 November 1880 |
Thanksgiving |
13 | Friday, 26 November 1880 |
Black Friday |
| Friday, 24 December 1880 |
Christmas (observance)/Christmas Eve |
14 | Saturday, 25 December 1880 |
Christmas |
15 | Sunday, 26 December 1880 |
December 26 |
| Friday, 31 December 1880 |
New Year's Day (observance) |