KST to BST Converter
GMT is 9 hours behind KST. 9:00 AM KST = 12:00 AM GMT.
GMT is 9 hours behind KST at the moment. To convert KST to BST, subtract 9 hours from the KST time: 9:00 AM KST = 12:00 AM GMT.
KST (Korea Time) is used in South Korea. BST (British Time) is used in United Kingdom from late March to late October.
BST here means British Summer Time, not Bangladesh Standard Time. BST (British Summer Time) is not in force right now: United Kingdom from late March to late October is currently on GMT. This page uses whichever name applies on the date you pick, so the numbers below say GMT.
KST to BST time conversion table
KST to BST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| KST | BST | Day |
|---|---|---|
| 12:00 AM KST | 3:00 PM GMT | previous day |
| 1:00 AM KST | 4:00 PM GMT | previous day |
| 2:00 AM KST | 5:00 PM GMT | previous day |
| 3:00 AM KST | 6:00 PM GMT | previous day |
| 4:00 AM KST | 7:00 PM GMT | previous day |
| 5:00 AM KST | 8:00 PM GMT | previous day |
| 6:00 AM KST | 9:00 PM GMT | previous day |
| 7:00 AM KST | 10:00 PM GMT | previous day |
| 8:00 AM KST | 11:00 PM GMT | previous day |
| 9:00 AM KST | 12:00 AM GMT | night |
| 10:00 AM KST | 1:00 AM GMT | night |
| 11:00 AM KST | 2:00 AM GMT | night |
| 12:00 PM KST | 3:00 AM GMT | night |
| 1:00 PM KST | 4:00 AM GMT | night |
| 2:00 PM KST | 5:00 AM GMT | night |
| 3:00 PM KST | 6:00 AM GMT | — |
| 4:00 PM KST | 7:00 AM GMT | — |
| 5:00 PM KST | 8:00 AM GMT | — |
| 6:00 PM KST | 9:00 AM GMT | — |
| 7:00 PM KST | 10:00 AM GMT | — |
| 8:00 PM KST | 11:00 AM GMT | — |
| 9:00 PM KST | 12:00 PM GMT | — |
| 10:00 PM KST | 1:00 PM GMT | — |
| 11:00 PM KST | 2:00 PM GMT | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert KST to BST
Subtract 9 hours from the KST time to get BST.
Example: 9:00 AM KST = 12:00 AM GMT.
Across midnight: 1:00 AM KST = 4:00 PM GMT (previous day). The date changes, so always check the day as well as the hour.
Time difference between KST and BST
The time difference between KST and BST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 28 Mar 2026: BST is 9 hours behind of KST.
- 29 Mar 2026 – 24 Oct 2026: BST is 8 hours behind of KST.
- 25 Oct 2026 – 31 Dec 2026: BST is 9 hours behind of KST.
KST and BST during daylight saving time
- KST does not observe daylight saving time; it stays on UTC+9 all year.
- BST next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
Best time for a meeting between KST and BST
KST and BST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM KST, which is 10:00 PM GMT.
KST to BST FAQ
What is the time difference between KST and BST?
Right now GMT is 9 hours behind KST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM KST in BST?
9:00 AM KST is 12:00 AM GMT.
What is 12 PM (noon) KST in BST?
12:00 PM KST is 3:00 AM GMT.
Is BST ahead of or behind KST?
GMT is 9 hours behind KST, so it is earlier in BST than in KST.
Does KST change for daylight saving time?
No. KST stays on the same offset all year, so conversions never shift for daylight saving time.
Does BST change for daylight saving time?
Yes. BST next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.
What is the best time for a meeting between KST and BST?
KST and BST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM KST, which is 10:00 PM GMT.
Related conversions
Convert BST to KST
Convert KST to other time zones
Convert other time zones to BST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.