New Year's Day
Martin Luther King Day
Mardi gras day
President's Day
Confeder. Memorial Day
Memorial Day
Jefferson Davis Day
Juneteenth
Independence Day
Labor Day
Columbus Day
Veterans Day (obs.)
Veterans Day
Thanksgiving
Christmas
December 26
New Year's Eve
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
 ‹ 1779
1780
1781 › 
# Date Public holiday
1Saturday, 1 January 1780 New Year's Day
2Monday, 17 January 1780 Martin Luther King Day
3Tuesday, 8 February 1780 Mardi gras day
4Monday, 21 February 1780 Washington's Birthday
5Monday, 24 April 1780 Confederate Memorial Day
6Monday, 29 May 1780 Memorial Day
7Monday, 5 June 1780 Jefferson Davis Day
8Monday, 19 June 1780 Juneteenth National Independence Day
9Tuesday, 4 July 1780 Independence Day
10Monday, 4 September 1780 Labor Day
11Monday, 9 October 1780 Columbus Day
Friday, 10 November 1780 Veterans Day (observance)
12Saturday, 11 November 1780 Veterans Day
13Thursday, 23 November 1780 Thanksgiving
14Monday, 25 December 1780 Christmas
15Tuesday, 26 December 1780 December 26
16Sunday, 31 December 1780 New Year's Eve