No overlap — one side will join outside working hours
LONDON (London)
KST (Seoul)
00:00
08:00
01:00
09:00Working
02:00
10:00Working
03:00
11:00Working
04:00
12:00Working
05:00
13:00Working
06:00
14:00Working
07:00
15:00Working
08:00
16:00Working
09:00Working
17:00off
10:00Working
18:00off
11:00Working
19:00off
12:00Working
20:00off
13:00Working
21:00off
14:00Working
22:00off
15:00Working
23:00off
16:00Working
00:00+1doff
17:00
01:00+1d
18:00
02:00+1d
19:00
03:00+1d
20:00
04:00+1d
21:00
05:00+1d
22:00
06:00+1d
23:00
07:00+1d
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between london and kst?
LONDON (London) (london) is UTC+1 and Korea Standard Time (kst) is UTC+9. The difference between them is 8 hours.
Where is london used?
LONDON (London) (london) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London.
Where is kst used?
Korea Standard Time (kst) is used in South Korea and surrounding regions. The IANA timezone identifier is Asia/Seoul.
How do I convert london to kst?
Use the interactive converter above. Drag the time slider to any london time and the kst equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
London is 8 hours behind KST (Seoul). Midday in London lines up with 20:00 in KST (Seoul).
London observes Europe/London and KST (Seoul) observes Asia/Seoul — a 8 hours gap between them.
Daily overlap window
When London is in standard working hours, KST (Seoul) is not — and vice versa. There is no mutual business window between these two locations.
Optimal meeting slots
No business hours overlap exists between London and KST (Seoul). Showing the most balanced options with minimal inconvenience for both locations.
08:00 London / 16:00 Seoul⚡ One side off-hours
⚠️ 1h before working hours in London
09:00 London / 17:00 Seoul⚡ One side off-hours
⚠️ 1h after working hours in Seoul
07:00 London / 15:00 Seoul⚡ One side off-hours
⚠️ 2h before working hours in London
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
London6 holidays
Jul 13Battle of the Boyne
Aug 3Summer Bank Holiday
Aug 31Summer Bank Holiday
Nov 30Saint Andrew's Day
Dec 25Christmas Day
KST (Seoul)7 holidays
Aug 15Liberation Day
Sep 24Chuseok
Sep 25Chuseok
Sep 26Chuseok
Oct 3National Foundation Day
How to work with London and KST (Seoul) time zones
Coordinating between London (United Kingdom) and KST (Seoul) (South Korea) means working around a 8-hour time difference. Since standard business hours don't naturally overlap, meetings usually require one side to shift slightly outside their normal working day.
💡 How to schedule across these time zones
⚡
08:00–09:00 in London corresponds to 16:00–17:00 in KST (Seoul) (1h before working hours in London).
⚡
09:00–10:00 in London corresponds to 17:00–18:00 in KST (Seoul) (1h after working hours in Seoul).
⚡
07:00–08:00 in London corresponds to 15:00–16:00 in KST (Seoul) (2h before working hours in London).
Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any London time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
