Public holidays
1780, Argentina, standard
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, 1 January 1780 | New Year's Day |
| 2 | Thursday, 23 March 1780 | Maundy Thursday |
| 3 | Friday, 24 March 1780 | Good Friday |
| 4 | Monday, 1 May 1780 | Labour Day |
| 5 | Thursday, 25 May 1780 | May Revolution Day |
| 6 | Monday, 19 June 1780 | Flag Day |
| 7 | Sunday, 9 July 1780 | Independence Day |
| 8 | Monday, 21 August 1780 | General José de San Martín Memorial Day |
| 9 | Monday, 16 October 1780 | Day of Respect for Cultural Diversity |
| 10 | Friday, 8 December 1780 | Immaculate Conception |
| 11 | Monday, 25 December 1780 | Christmas Day |