Singapore is always 1 hour ahead of Jakarta. When it's 9:00 AM in Jakarta, it's 10:00 AM in Singapore. Neither city observes DST, so this difference is constant year-round.
Singapore uses SGT (UTC+8) while Jakarta uses WIB (UTC+7).
Business hours overlap almost completely! 9:00 AM - 6:00 PM Jakarta corresponds to 10:00 AM - 7:00 PM Singapore. Easy scheduling with just 1-hour offset.
Jakarta and Singapore are closely linked Southeast Asian business hubs. Singapore Airlines, Garuda, and budget carriers operate many daily 1.5-hour flights.