GMT to KST Time Converter
Use this GMT to KST time converter to compare United Kingdom and South Korea time instantly. KST is 9 hours ahead of GMT, so 9:00 AM GMT becomes 6:00 PM KST and 5:00 PM GMT becomes 2:00 AM (next day) KST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
GMT to KST Quick Facts
Use this GMT to KST converter to compare United Kingdom and South Korea time, check the 9 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM GMT / 6:00 PM KST.
How to Convert GMT to KST
Converting between Greenwich Mean Time and Korea Standard Time means accounting for a 9 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Greenwich Mean Time (UTC +0) that you want to convert. Hit "Now" to load the current GMT time instantly, or use "+1h" to step forward and compare.
The equivalent Korea Standard Time (UTC +9) time appears immediately. Since KST is 9 hours ahead of GMT, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the KST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring Universal–South Korea calls.
Why Choose Our GMT to KST Converter
When someone in Universal suggests 9:00 AM GMT, that's 6:00 PM KST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night GMT times can land on a different date in KST because of the 9 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the GMT–KST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in GMT. Convert the event time to KST so you know exactly when to tune in — with a 9 hours difference, a morning event in Universal falls during work hours in South Korea.
GMT to KST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Greenwich Mean Time to Korea Standard Time full day schedule
| Greenwich Mean Time | Korea Standard Time |
|---|---|
| 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
(next day)
|
| 4:00 PM |
1:00 AM
(next day)
|
| 5:00 PM |
2:00 AM
(next day)
|
| 6:00 PM |
3:00 AM
(next day)
|
| 7:00 PM |
4:00 AM
(next day)
|
| 8:00 PM |
5:00 AM
(next day)
|
| 9:00 PM |
6:00 AM
(next day)
|
| 10:00 PM |
7:00 AM
(next day)
|
| 11:00 PM |
8:00 AM
(next day)
|
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Convert Other Time Zones to KST
Find the time difference from any major zone into Korea Standard Time. Use these pages when scheduling with South Korea from a different region.