GMT to KST Converter
KST is 9 hours ahead of GMT.
GMT
Thursday, October 1, 2026
Greenwich Mean Time · UTC+0
KST
Friday, October 2, 2026
Korea Standard Time · UTC+9
Convert GMT to KST
GMT 19:00 = KST 04:00
GMT to KST time chart, hour by hour
| GMT | KST |
|---|
| 00:00 | 09:00 |
| 01:00 | 10:00 |
| 02:00 | 11:00 |
| 03:00 | 12:00 |
| 04:00 | 13:00 |
| 05:00 | 14:00 |
| 06:00 | 15:00 |
| 07:00 | 16:00 |
| 08:00 | 17:00 |
| 09:00 | 18:00 |
| 10:00 | 19:00 |
| 11:00 | 20:00 |
| 12:00 | 21:00 |
| 13:00 | 22:00 |
| 14:00 | 23:00 |
| 15:00 | 00:00 +1 day |
| 16:00 | 01:00 +1 day |
| 17:00 | 02:00 +1 day |
| 18:00 | 03:00 +1 day |
| 19:00 | 04:00 +1 day |
| 20:00 | 05:00 +1 day |
| 21:00 | 06:00 +1 day |
| 22:00 | 07:00 +1 day |
| 23:00 | 08:00 +1 day |
There is no overlap between 09:00–18:00 working days in these two places.
How many hours is GMT behind KST?
As abbreviations, KST is always 9 hours ahead of GMT: GMT is UTC+0 and KST is UTC+9. To convert, add 9 hours.
Does the GMT to KST time difference change?
No. Kst is 9 hours ahead of gmt all year, because neither place changes its clocks.
Calling hours for GMT and KST
- When KST is 9 hours ahead of GMT: no shared 09:00 to 17:00 hours; try 08:00 in GMT (17:00 in KST).
Frequently asked questions about GMT and KST time
How many hours ahead is KST of GMT?
KST (UTC+9) is 9 hours ahead of GMT (UTC+0).
Does the time difference between GMT and KST change during the year?
No, it stays 9 hours ahead all year because neither place changes its clocks.