Public holidays in Greece

According to Greek law every Sunday of the year is a public holiday. In addition, there are nine mandatory, official public holidays: New Year's Day 1 January, Theophany 6 January, Clean Monday (moveable), Greek Independence Day and Annunciation 25 March, Orthodox Good Friday (movable), Orthodox Easter Monday (movable), 1 May, Orthodox Pentecost Monday (movable), Dormition 15 August, Oxi Day 28 October, Nativity 25 December, and Synaxis of the Theotokos 26 December.

Source: Wikipedia — Public holidays in Greece (CC BY-SA 4.0)