No overlap — one side will join outside working hours
KST (Seoul)
BST (London)
00:00
16:00-1dWorking
01:00
17:00-1d
02:00
18:00-1d
03:00
19:00-1d
04:00
20:00-1d
05:00
21:00-1d
06:00
22:00-1d
07:00
23:00-1d
08:00
00:00
09:00Working
01:00off
10:00Working
02:00off
11:00Working
03:00off
12:00Working
04:00off
13:00Working
05:00off
14:00Working
06:00off
15:00Working
07:00off
16:00Working
08:00off
17:00
09:00Working
18:00
10:00Working
19:00
11:00Working
20:00
12:00Working
21:00
13:00Working
22:00
14:00Working
23:00
15:00Working
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between kst and bst?
Korea Standard Time (kst) is UTC+9 and British Summer Time (bst) is UTC+1. The difference between them is 8 hours.
Where is kst used?
Korea Standard Time (kst) is used in South Korea and surrounding regions. The IANA timezone identifier is Asia/Seoul.
Where is bst used?
British Summer Time (bst) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London. Note: bst is ambiguous and may refer to other timezones.
How do I convert kst to bst?
Use the interactive converter above. Drag the time slider to any kst time and the bst equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
KST (Seoul) is 8 hours ahead of BST (London). When it's noon in KST (Seoul), it's 04:00 in BST (London).
KST (Seoul) is in the Asia/Seoul timezone. BST (London) is in Europe/London. The difference is 8 hours.
Shared working hours
KST (Seoul) and BST (London) have no shared working hours under a standard 9:00–17:00 schedule. One side will always need to join at an off-hour.
Recommended meeting windows
Since KST (Seoul) and BST (London) don't share working hours, these are the most practical options available.
16:00 Seoul / 08:00 London⚡ One side off-hours
⚠️ 1h before working hours in London
17:00 Seoul / 09:00 London⚡ One side off-hours
⚠️ 1h after working hours in Seoul
15:00 Seoul / 07:00 London⚡ One side off-hours
⚠️ 2h before working hours in London
Based on standard 09:00–17:00 working hours in each location's local time.
Public holidays this year
⚡ Upcoming holidays in both locations, confirm with your contact before booking.
KST (Seoul)7 holidays
Aug 15Liberation Day
Sep 24Chuseok
Sep 25Chuseok
Sep 26Chuseok
Oct 3National Foundation Day
BST (London)6 holidays
Jul 13Battle of the Boyne
Aug 3Summer Bank Holiday
Aug 31Summer Bank Holiday
Nov 30Saint Andrew's Day
Dec 25Christmas Day
KST (Seoul) and BST (London) — practical scheduling
A 8-hour difference separates KST (Seoul) (South Korea) and BST (London) (United Kingdom) — wide enough that standard business hours don't align at all. Scheduling requires deliberate compromise from both sides.
💡 Practical scheduling guidelines
⚡
When KST (Seoul) is at 16:00, BST (London) reads 08:00 — 1h before working hours in London.
⚡
When KST (Seoul) is at 17:00, BST (London) reads 09:00 — 1h after working hours in Seoul.
⚡
When KST (Seoul) is at 15:00, BST (London) reads 07:00 — 2h before working hours in London.
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.
Use the time slider above to find the exact equivalent time for any moment in KST (Seoul). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.