GMT to KST Time Converter

Greenwich Mean Time → Korea Standard Time

GMT

UTC+0

Greenwich Mean Time

offset
+9h
KST is 9h ahead

KST

UTC+9

Korea Standard Time

GMT observes DST — offset shifts ±1h during transitions

Greenwich Mean Time (GMT) is 9 hours ahead Korea Standard Time (KST). When it is noon in GMT, it is 9 PM in KST. This offset may change during Daylight Saving Time transitions.

Best Meeting Times — GMT & KST

Recommended windows where both GMT and KST participants are within working hours (8 AM–6 PM).

GMTKSTRatingDetail page
8 AM
5 PM
Best
9 AM
6 PM
Best
7 AM
4 PM
Good
10 AM
7 PM
Good

Tip: When scheduling between GMT and KST, aim for the “Best” windows above. These times keep both parties within normal working hours, avoiding early-morning or late-evening fatigue. Note that one of these time zones observes Daylight Saving Time — the offset may shift ±1 hour around transition dates.

Frequently Asked Questions — GMT to KST

Greenwich Mean Time (GMT) is 9 hours ahead of Korea Standard Time (KST). GMT is UTC+0 and KST is UTC+9. This offset may shift by ±1 hour during Daylight Saving Time transitions.