GMT +7 Western Indonesia Time
Covering Java, Sumatera, Madura. West Kalimantan and Central Kalimantan.
GMT +8 Central Indonesia Time
Covering East and South Kalimantan, Sulawesi, Bali and Nusa Tenggara
GMT +9 Eastern Indonesia Time
Covering Maluku and Irian Jaya
The Indonesia Rupiah is also called IDR. Information of daily exchange rate can be found in newspapers or from the net. Some Indonesia banks provide this on their websites. IDR and US$ are the most acceptable currencies. Most tourism resorts have money changer facilities. When you are traveling to remote areas it is advisable to exchange your money and clear your check. Credit cards are only acceptable in big hotels, restaurants, shops and traveling agencies.
Office in Indonesia
Standard banking hours are from 8 AM to 3 PM from Monday to Friday. However several banks open their branches in hotels (and some in malls) longer than office hour, a few are open on Saturdays so you might want to check first. Jakarta has a number of international banks, even though you can also exchange currencies in some hotel cashiers and official money changers.