Public holidays
1866, España, Festivos nacionales
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1866 | New Year's Day |
| 2 | Saturday, 6 January 1866 | Epiphany of the Lord |
| 3 | Friday, 30 March 1866 | Good Friday |
| 4 | Tuesday, 1 May 1866 | Labour Day |
| 5 | Wednesday, 15 August 1866 | Assumption of the Virgin Mary |
| 6 | Thursday, 1 November 1866 | All Saints' Day |
| 7 | Thursday, 6 December 1866 | Spanish Constitution Day |
| 8 | Saturday, 8 December 1866 | Immaculate Conception |
| 9 | Tuesday, 25 December 1866 | Nativity of the Lord |