Major international banking institutions, credit card companies and ATMs in and around Athens are plentiful and easy to access. Banks are open to the public Monday through Thursday 08:00 to 14:30 and Friday 08:00 to 13:30, except on public holidays. The "Open24" Bank (Eurobank) is open mornings and afternoons, as well as on Saturdays. Foreign currency may be exchanged for euro's at most Greek and foreign banks and at exchange bureaus located in the city centre. Bring your passport when exchanging money as you will need it for the transaction. Traveller's checks and credit cards issued by major companies are also widely recognized and an accepted means of purchasing items in Athens.