GMT to KST Time Converter
Convert Greenwich Mean Time to Korea Standard Time instantly.
Scroll the timeline to check any hour of the day.
Greenwich Mean Time
GMT
6:06
Korea Standard Time
KST
3:06
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How the GMT to KST time difference works
KST is 9 hours ahead of GMT. Greenwich Mean Time (GMT) is the fixed UTC+0 reference time, used by the United Kingdom and Ireland in winter. Korea Standard Time (KST) is the time zone of South Korea. For example, 9:00 AM GMT is 6:00 PM KST. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
9 hours
Daylight saving
Neither
GMT offset
UTC+0
KST offset
UTC+9
GMT to KST conversion chart
| Greenwich Mean Time (GMT) | Korea Standard Time (KST) |
|---|---|
| 12:00 AM | 9:00 AM |
| 1:00 AM | 10:00 AM |
| 2:00 AM | 11:00 AM |
| 3:00 AM | 12:00 PM |
| 4:00 AM | 1:00 PM |
| 5:00 AM | 2:00 PM |
| 6:00 AM | 3:00 PM |
| 7:00 AM | 4:00 PM |
| 8:00 AM | 5:00 PM |
| 9:00 AM | 6:00 PM |
| 10:00 AM | 7:00 PM |
| 11:00 AM | 8:00 PM |
| 12:00 PM | 9:00 PM |
| 1:00 PM | 10:00 PM |
| 2:00 PM | 11:00 PM |
| 3:00 PM | 12:00 AM +1 day |
| 4:00 PM | 1:00 AM +1 day |
| 5:00 PM | 2:00 AM +1 day |
| 6:00 PM | 3:00 AM +1 day |
| 7:00 PM | 4:00 AM +1 day |
| 8:00 PM | 5:00 AM +1 day |
| 9:00 PM | 6:00 AM +1 day |
| 10:00 PM | 7:00 AM +1 day |
| 11:00 PM | 8:00 AM +1 day |
Cities in each time zone
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
Korea Standard Time (KST)
SeoulBusanIncheonDaeguDaejeon
GMT to KST questions
Is KST ahead of or behind GMT?
KST is 9 hours ahead of GMT. So 9:00 AM GMT is 6:00 PM KST, and 5:00 PM GMT is 2:00 AM KST.
What time is it in KST when it is 12:00 PM GMT?
When it is 12:00 PM (noon) GMT in Greenwich Mean Time, it is 9:00 PM KST in Korea Standard Time.
How many hours difference is there between GMT and KST?
There is a 9 hours difference. Korea Standard Time (KST) runs 9 hours ahead of Greenwich Mean Time (GMT).
Do GMT and KST observe daylight saving time?
Neither Greenwich Mean Time nor Korea Standard Time shifts its clocks for daylight saving time, so the 9 hours difference between them is the same all year. The United Kingdom and Ireland use GMT only in winter; from late March to late October they switch to British Summer Time (BST), one hour ahead of GMT.
What is the best time to schedule a meeting between GMT and KST?
A standard 9-to-5 workday in Greenwich Mean Time and Korea Standard Time does not overlap, so pick the early morning in the later zone or the late evening in the earlier zone.
Which cities use GMT and KST?
Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester. Korea Standard Time (KST) covers cities such as Seoul, Busan, Incheon, Daegu, Daejeon.