New Year's Day
Good Friday
Labour Day
May Revolution Day
Flag Day
Independence Day
General José de San Martín Memorial Day
Day of Respect for Cultural Diversity
Immaculate Conception
Christmas Day
  January
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 ‹ 1819
1820
1821 › 
# Date Public holiday
1Saturday, 1 January 1820 New Year's Day
2Friday, 31 March 1820 Good Friday
3Monday, 1 May 1820 Labour Day
4Thursday, 25 May 1820 May Revolution Day
5Monday, 19 June 1820 Flag Day
6Sunday, 9 July 1820 Independence Day
7Monday, 21 August 1820 General José de San Martín Memorial Day
8Monday, 16 October 1820 Day of Respect for Cultural Diversity
9Friday, 8 December 1820 Immaculate Conception
10Monday, 25 December 1820 Christmas Day