Office hours
Offices: Monday to Friday: 9.00 a.m. – 4.00 pm
Library: Monday to Wednesday: 9.00 a.m. – 4.30 p.m., Friday: 9.00 a.m. – 4.30 p.m.
Guest Accommodation: Continuous access with the exception of the Christmas and August holidays.
The offices are closed on weekends, Christmas, August, as well as all official Greek holidays.
During 2021 OIA will be closed on the following days:
| January 1 | New Year |
| January 6 | The Holy Epiphany |
| March 15 | Clear Monday |
| March 25 | National Holiday |
| 30 April – 3 May | Easter Holidays |
| May 4 | May 1 |
| June 21 | Monday St. Spirit |
| August 15 | The Assumption of the Virgin |
| October 28 | National Holiday |
| December 25 – 31 | Christmas Holidays |
