groups Sundanese (74%), Javanese (11%), Betawi (5%), Cirebonese (5%) [2] Religion Islam (96.5%), Protestant (1.2%), Roman Catholic (0.7%), Buddhism (0.2%), Hinduism (0.1%) Languages Indonesian (official), Sundanese Time zone WIB ( UTC+7 ) Web site http://www.jabar.go.id/ West Java ( Indonesian : Jawa Barat, Javanese : Jawa Kulon), with population around 38.89 [3]