New Year's Day
Epiphany
Carnival Tuesday
Saint Joseph's Day
Maundy Thursday
Good Friday
Labour Day
Labour substitute
Assumption
Extremadura Day
All Saints' Day
Constitution Day
Immaculate Concep.
Christmas Day
Christmas substitute
  January
  February
  March
  April
  May
  June
  July
  August
  September
  October
  November
  December
 ‹ 1565
1566
1567 › 
# Date Public holiday
1Saturday, 1 January 1566 New Year's Day
2Thursday, 6 January 1566 Epiphany of the Lord
3Tuesday, 1 March 1566 Day of the Balearic Islands/Shrove Tuesday/Day of the Balearic Islands / Shrove Tuesday
4Saturday, 19 March 1566 Saint Joseph's Day
5Thursday, 14 April 1566 Maundy Thursday
6Friday, 15 April 1566 Good Friday
7Sunday, 1 May 1566 Labour Day
8Monday, 2 May 1566 Monday following Labour Day/Day of the Community of Madrid / Monday following Labour Day
9Monday, 15 August 1566 Assumption of the Virgin Mary
10Thursday, 8 September 1566 Extremadura Day
11Tuesday, 1 November 1566 All Saints' Day
12Tuesday, 6 December 1566 Spanish Constitution Day
13Thursday, 8 December 1566 Immaculate Conception
14Sunday, 25 December 1566 Nativity of the Lord
15Monday, 26 December 1566 Monday following Christmas Day/Saint Stephen’s Day — Second Day of Christmas / Monday following Christmas Day