GMT to KST Converter
KST is 9 hours ahead of GMT. 9:00 AM GMT = 6:00 PM KST.
KST is 9 hours ahead of GMT. To convert GMT to KST, add 9 hours to the GMT time: 9:00 AM GMT = 6:00 PM KST.
GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year. KST (Korea Time) is used in South Korea.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
GMT to KST time conversion table
GMT to KST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| GMT | KST | Day |
|---|---|---|
| 12:00 AM GMT | 9:00 AM KST | — |
| 1:00 AM GMT | 10:00 AM KST | — |
| 2:00 AM GMT | 11:00 AM KST | — |
| 3:00 AM GMT | 12:00 PM KST | — |
| 4:00 AM GMT | 1:00 PM KST | — |
| 5:00 AM GMT | 2:00 PM KST | — |
| 6:00 AM GMT | 3:00 PM KST | — |
| 7:00 AM GMT | 4:00 PM KST | — |
| 8:00 AM GMT | 5:00 PM KST | — |
| 9:00 AM GMT | 6:00 PM KST | — |
| 10:00 AM GMT | 7:00 PM KST | — |
| 11:00 AM GMT | 8:00 PM KST | — |
| 12:00 PM GMT | 9:00 PM KST | — |
| 1:00 PM GMT | 10:00 PM KST | night |
| 2:00 PM GMT | 11:00 PM KST | night |
| 3:00 PM GMT | 12:00 AM KST | next day |
| 4:00 PM GMT | 1:00 AM KST | next day |
| 5:00 PM GMT | 2:00 AM KST | next day |
| 6:00 PM GMT | 3:00 AM KST | next day |
| 7:00 PM GMT | 4:00 AM KST | next day |
| 8:00 PM GMT | 5:00 AM KST | next day |
| 9:00 PM GMT | 6:00 AM KST | next day |
| 10:00 PM GMT | 7:00 AM KST | next day |
| 11:00 PM GMT | 8:00 AM KST | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert GMT to KST
Add 9 hours to the GMT time to get KST.
Example: 9:00 AM GMT = 6:00 PM KST.
Across midnight: 10:00 PM GMT = 7:00 AM KST (next day). The date changes, so always check the day as well as the hour.
Time difference between GMT and KST
The time difference between GMT and KST is 9 hours all year – KST is ahead of GMT.
GMT and KST during daylight saving time
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
- KST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between GMT and KST
GMT and KST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GMT, which is 4:00 PM KST.
GMT to KST FAQ
What is the time difference between GMT and KST?
KST is 9 hours ahead of GMT all year. 9:00 AM GMT = 6:00 PM KST.
What is 9 AM GMT in KST?
9:00 AM GMT is 6:00 PM KST.
What is 12 PM (noon) GMT in KST?
12:00 PM GMT is 9:00 PM KST.
Is KST ahead of or behind GMT?
KST is 9 hours ahead of GMT, so it is later in KST than in GMT.
Does GMT change for daylight saving time?
No. GMT stays on the same offset all year, so conversions never shift for daylight saving time.
Does KST change for daylight saving time?
No. KST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between GMT and KST?
GMT and KST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GMT, which is 4:00 PM KST.
Related conversions
Convert KST to GMT
Convert GMT to other time zones
Convert other time zones to KST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.