Public holidays
1257, Greece
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1257 | New Year's Day |
| 2 | Saturday, 6 January 1257 | Epiphany |
| 3 | Sunday, 4 March 1257 | Clean Monday |
| 4 | Sunday, 25 March 1257 | Independence Day |
| 5 | Thursday, 19 April 1257 | Good Friday |
| 6 | Saturday, 21 April 1257 | Orthodox Easter |
| 7 | Sunday, 22 April 1257 | Easter Monday |
| 8 | Tuesday, 1 May 1257 | Labour Day |
| 9 | Saturday, 9 June 1257 | Pentecost |
| 10 | Sunday, 10 June 1257 | Pentecost Monday |
| 11 | Wednesday, 15 August 1257 | Assumption |
| 12 | Sunday, 28 October 1257 | Ochi Day |
| 13 | Tuesday, 25 December 1257 | Christmas |
| 14 | Wednesday, 26 December 1257 | Glorifying Mother of God |