SGT to JST Time Converter
Japan Standard Time (JST) is currently 1 hour ahead of Singapore Time (SGT). SGT is UTC+8 and JST is UTC+9. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 4:00 PM in SGT, which is 10:00 AM to 5:00 PM in JST.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: SGT to JST
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
SGT and JST are fixed offsets, so the difference between them never changes.
SGT is UTC+8 with no daylight saving. Hong Kong, China, Malaysia, and the Philippines share this offset.
JST is UTC+9. Japan has no daylight saving, so this offset never changes.
Frequently Asked Questions
How many hours ahead is JST compared to SGT?
JST is currently 1 hour ahead of SGT. SGT and JST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in SGT in JST?
9:00 AM in SGT is 10:00 AM in JST.
What is the best time for a call between SGT and JST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 4:00 PM in SGT, which is 10:00 AM to 5:00 PM in JST.