The official currency is Zloty (PLN), divided into 100 groszy. Poland still uses cash more frequently than visitors might expect, and it is sometimes difficult to use credit cards in remote areas. Credit cards are, however, accepted in places frequented by tourists. ATMs or Bankomats are available in major towns and cities. Money (preferably US Dollars or Euros) can be exchanged in the cities and larger towns at banks, hotels or bureaux de change called 'kantors', which offer the best rates. Banks are open Monday to Friday from 10am to 6pm and some are open on Saturday until 1pm.