New Year's Day
Constitution Day
Benito Juárez's Birthday
Good Friday
Labour Day
Independence Day
Revolution Day
Christmas Day
  January
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 ‹ 1865
1866
1867 › 
# Date Public holiday
1Monday, 1 January 1866 New Year's Day
2Monday, 5 February 1866 Constitution Day
3Wednesday, 21 March 1866 Benito Juárez's Birthday
4Friday, 30 March 1866 Good Friday
5Tuesday, 1 May 1866 Labour Day
6Sunday, 16 September 1866 Independence Day
7Tuesday, 20 November 1866 Revolution Day
8Tuesday, 25 December 1866 Christmas Day