As a country belonging to the European Union, your currency is the euro. There are 500, 200, 100, 50, 20, 10 and 5 Euro bills. The coins are 1 and 2 euros and 50, 20, 10, 5, 2, 1 euro cents. You can exchange currencies at all banks, savings banks and exchange offices. In cities and large islands you can pay by European credit or debit card, because in most places they accept them. The Master Card, American Express, Diners Club, Visa and Electron cards are also accepted by almost everyone, if you have another, you should only check if they accept it in the place you will consume or buy something.
As you know traveler’s checks with great help, and in Greece they are accepted in almost all places, you can also easily change them in banks, but keep in mind that banks usually charge a commission, the minimum is 0.15 euros and the maximum 13.21 euros.
Banks service from 08:00 to 14:00 or 16:00 hours from Monday to Thursday. Friday hours are from 08:00 to 13:30 hours. On some islands, banks usually open in the afternoon, so take it into account.