The Republic of Indonesia is the largest archipelago in the world comprising 13,466 large and small tropical islands fringed with white sandy beaches, many still uninhabited and a number even still unnamed. Straddling the equator, situated between the continents of Asia and Australia and between the Pacific and the Indian Oceans, it is as wide as the United States from San Francisco to New York, equaling the distance between London and Moscow. Indonesia has a total population of more than 215 million people from more than 200 ethnic groups. The national language is Bahasa Indonesia.
Among the most well known islands are Sumatra, Java, Bali, Kalimantan (formerly Borneo), Sulawesi (formerly Celebes), the Maluku Islands (or better known as Moluccas, the original Spice Islands) and Papua. Then, there is Bali “the world's best island resort” with its enchanting culture, beaches, dynamic dances and music. But Indonesia still has many unexplored islands with grand mountain.
Indonesia has three time zones—Western Indonesia Time which is GMT +7 (covering Sumatra, Java, Madura, West Kalimantan, Central Kalimantan), Central Indonesia Time which is GMT +8 (covering East and South Kalimantan, Sulawesi, Bali, Nusa Tenggara) and the last is Eastern Indonesia Time which is GMT +9 (covering Maluku and Irian Jaya). The capital Jakarta is GMT + 7 or 16 hours ahead of US Pacific Standard Time.
Office hours start from 8 AM to 4 PM, or 9 AM to 5 PM. Lunch break occurs between 12 noon to 1 PM. Usually offices are closed on Saturdays, including government offices. Government office hours start at 8 AM and end at 4 PM.
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. Surabayahas a number of international banks, even though you can also exchange currencies in some hotel cashiers and official money changers.
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.
Electric power supply is 220 volts in all regions. So be careful with your 110-volt electronic equipment. The sockets will only fit with with two pins rounded-tip plugs (technically known as Type C, E, and F) or use adaptors. Most hotels and many restaurants in large cities provide internet connections or free WiFi.