New Year's Day
Epiphany
Saint Joseph's Day
Maundy Thursday
Good Friday
Easter Monday
Labour Day
Labour substitute
Saint James's Day
Institutions Day
Assumption
Our Lady Aparecida
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
3Saturday, 19 March 1566 Saint Joseph's Day
4Thursday, 14 April 1566 Maundy Thursday
5Friday, 15 April 1566 Good Friday
6Monday, 18 April 1566 Easter Monday
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, 25 July 1566 Saint James the Apostle
10Thursday, 28 July 1566 Day of the Institutions of Cantabria
11Monday, 15 August 1566 Assumption of the Virgin Mary
12Thursday, 15 September 1566 Feast of Our Lady of La Bien Aparecida
13Tuesday, 1 November 1566 All Saints' Day
14Tuesday, 6 December 1566 Spanish Constitution Day
15Thursday, 8 December 1566 Immaculate Conception
16Sunday, 25 December 1566 Nativity of the Lord
17Monday, 26 December 1566 Monday following Christmas Day/Saint Stephen’s Day — Second Day of Christmas / Monday following Christmas Day