The local currency is CFP (XPF / Pacific Francs) which is fixed to the EURO. (€1 = 119 cfp)
There are cash distributors outside most banks, at the airports and at shopping centers. Most distributors accept debit or credit cards from major international banks (VISA, MASTERCARD). Most stores and restaurants accept credit cards.
Banks are open on weekdays only; usually 8-12 and 1:30-4, except for the Banque de Polynesie is open Saturday mornings, and closed on Mondays.
Banks exchange dollars for Pacific Francs, but charge a transaction fee. You must present your passport when exchanging dollars. A US driver's license is not accepted as valid identification. Some banks only change money on certain days, so it is wise to use the distributors.