New Year's Day
Martin Luther King Day
Memorial Day
Juneteenth
Independence Day
Labor Day
Columbus Day
Veterans Day (obs.)
Veterans Day
Thanksgiving
Black Friday
Christmas
  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
3Monday, 29 May 1780 Memorial Day
4Monday, 19 June 1780 Juneteenth National Independence Day
5Tuesday, 4 July 1780 Independence Day
6Monday, 4 September 1780 Labor Day
7Monday, 9 October 1780 Columbus Day
Friday, 10 November 1780 Veterans Day (observance)
8Saturday, 11 November 1780 Veterans Day
9Thursday, 23 November 1780 Thanksgiving
10Friday, 24 November 1780 Black Friday
11Monday, 25 December 1780 Christmas