As of January 1, 1988, Indonesia's three time zones have been changed as below:

1. Western Indonesia Standard Time equals GMT + 7 hours (meridian 105"E), covering all provinces in Sumatra and Java, and the provinces of West and Central Kalimantan.
   
   
2. Central Indonesia Standard Time equals GMT + 8 hours (meridian 120"E), covering the provinces of East and South Kalimantan, all provinces in Sulawesi, and the provinces of Bali, West and East Nusatenggara.
   
   
3. Eastern Indonesia Standard Time equals GMT + 9 hours (meridian 1:35"E), covering the provinces of Maluku and Papua.