JST to GMT
Convert Japan Standard Time (JST) to Greenwich Mean Time (GMT), live. GMT is normally 9 hours behind JST. Pick any time below, or open the full world clock map.
Loading live JST and GMT clocks…
JST vs GMT
JST (Japan Standard Time) runs at UTC+9 and GMT (Greenwich Mean Time) at UTC+0. GMT is normally 9 hours behind JST.
JST stays at UTC+9 all year round — it does not observe daylight saving time. GMT stays at UTC+0 all year round — it does not observe daylight saving time.
Looking for the reverse conversion? See GMT to JST. You can also browse every offset on the interactive time zone map or line up several zones at once with the meeting planner.