JST to GST
Convert Japan Standard Time (JST) to Gulf Standard Time (GST), live. GST is normally 5 hours behind JST. Pick any time below, or open the full world clock map.
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JST vs GST
JST (Japan Standard Time) runs at UTC+9 and GST (Gulf Standard Time) at UTC+4. GST is normally 5 hours behind JST.
JST stays at UTC+9 all year round — it does not observe daylight saving time. GST stays at UTC+4 all year round — it does not observe daylight saving time.
Looking for the reverse conversion? See GST 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.