The short answer

9am in Korea Standard Time is 1am in British Summer Time.

Korea Standard Time is 8 hours ahead of British Summer Time. It lands deep outside working hours in British Summer Time — see the best time to meet below for a friendlier slot.

Korea Standard Time
9am
British Summer Time
1am
Right now
1:30amKST · UTC+09:00 · Mon, Aug 31
5:30pmBST · UTC+01:00 · Sun, Aug 30
Read across to convert
Korea Standard Time
KST · UTC+09:00
1:30am ☾
British Summer Time
BST · UTC+01:00
5:30pm ☀
Pinned9amKorea Standard Time=1amBritish Summer Time
12amMon
4pmSun ·−1d
WORK
NOW
1am
5pmSun ·−1d
2am
6pmSun ·−1d
3am
7pmSun ·−1d
4am
8pmSun ·−1d
5am
9pmSun ·−1d
6am
10pmSun ·−1d
7am
11pmSun ·−1d
8am
12amMon
PINNED
9am
WORK
1am
10am
WORK
2am
11am
WORK
3am
12pm
WORK
4am
1pm
WORK
5am
2pm
WORK
6am
3pm
WORK
7am
4pm
WORK
8am
5pm
9am
WORK
6pm
10am
WORK
7pm
11am
WORK
8pm
12pm
WORK
9pm
1pm
WORK
10pm
2pm
WORK
11pm
3pm
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Korea Standard Time
3pm–7pm
=
British Summer Time
7am–11am
Popular conversions

Quick reference.

9amKorea Standard Time=1amBritish Summer Time
12pmKorea Standard Time=4amBritish Summer Time
3pmKorea Standard Time=7amBritish Summer Time
5pmKorea Standard Time=9amBritish Summer Time
9pmKorea Standard Time=1pmBritish Summer Time
In context

What each side covers.

Korea Standard Time
KST · UTC+09:00
1:30am
Cities on this clock
British Summer Time
BST · UTC+01:00
5:30pm
Cities on this clock

Frequently asked

Quick answers about converting between Korea Standard Time and British Summer Time. Can't find what you need? Email [email protected].

What is the time difference between Korea Standard Time and British Summer Time?
Korea Standard Time is 8 hours ahead of British Summer Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 9am in Korea Standard Time, what time is it in British Summer Time?
9am in Korea Standard Time is 1am in British Summer Time. It lands deep outside working hours in British Summer Time — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Korea Standard Time and British Summer Time?
There's no comfortable 9-to-5 overlap between Korea Standard Time and British Summer Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — KST and BST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.