Public holidays
1644, Greece
| # | Date | Public holiday |
|---|---|---|
| 1 | Friday, 1 January 1644 | New Year's Day |
| 2 | Wednesday, 6 January 1644 | Epiphany |
| 3 | Thursday, 17 March 1644 | Clean Monday |
| 4 | Friday, 25 March 1644 | Independence Day |
| 5 | Sunday, 1 May 1644 | Labour Day |
| 6 | Monday, 2 May 1644 | Good Friday |
| 7 | Wednesday, 4 May 1644 | Orthodox Easter |
| 8 | Thursday, 5 May 1644 | Easter Monday |
| 9 | Wednesday, 22 June 1644 | Pentecost |
| 10 | Thursday, 23 June 1644 | Pentecost Monday |
| 11 | Monday, 15 August 1644 | Assumption |
| 12 | Friday, 28 October 1644 | Ochi Day |
| 13 | Sunday, 25 December 1644 | Christmas |
| 14 | Monday, 26 December 1644 | Glorifying Mother of God |