Public holidays
1866, Greece
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1866 | New Year's Day |
| 2 | Saturday, 6 January 1866 | Epiphany |
| 3 | Tuesday, 20 February 1866 | Clean Monday |
| 4 | Sunday, 25 March 1866 | Independence Day |
| 5 | Saturday, 7 April 1866 | Good Friday |
| 6 | Monday, 9 April 1866 | Orthodox Easter |
| 7 | Tuesday, 10 April 1866 | Easter Monday |
| 8 | Tuesday, 1 May 1866 | Labour Day |
| 9 | Monday, 28 May 1866 | Pentecost |
| 10 | Tuesday, 29 May 1866 | Pentecost Monday |
| 11 | Wednesday, 15 August 1866 | Assumption |
| 12 | Sunday, 28 October 1866 | Ochi Day |
| 13 | Tuesday, 25 December 1866 | Christmas |
| 14 | Wednesday, 26 December 1866 | Glorifying Mother of God |