British Summer Time to Korea Standard Time, with the offset for today's date rather than an average.
KST time
Korea Standard Time is ahead of British Summer Time — noon in BST is 8:00 pm in KST
BST todayUTC+01:00
KST todayUTC+09:00
Working-hour overlap0 h
Common meeting hours converted from BST to KST
BST (British Summer Time)
KST (Korea Standard Time)
Working hours in both?
7:00 am
3:00 pm
No
8:00 am
4:00 pm
No
9:00 am
5:00 pm
No
10:00 am
6:00 pm
No
11:00 am
7:00 pm
No
12:00 pm
8:00 pm
No
1:00 pm
9:00 pm
No
2:00 pm
10:00 pm
No
3:00 pm
11:00 pm
No
4:00 pm
12:00 amnext day
No
5:00 pm
1:00 amnext day
No
6:00 pm
2:00 amnext day
No
7:00 pm
3:00 amnext day
No
8:00 pm
4:00 amnext day
No
This calculator needs JavaScript to recalculate. Without it you are
reading the answer worked out on 28 August 2026, which is exact for that date and does not
change by itself. With JavaScript on, the page works the answer out again for the date you
open it.
Worked out for
· conventions last checked
Which zone this page means. BST means British Summer Time (UTC+1) and also Bangladesh Standard Time (UTC+6). This page means the British zone, which applies from the last Sunday in March to the last Sunday in October; the rest of the year the United Kingdom is on GMT. South Korea does not observe daylight saving, so KST applies all year. It shares an offset with Japan.
BST is behind KST by 8 hours today
On 28 August 2026, British Summer Time is on BST at
UTC+01:00 and Korea Standard Time is on KST at
UTC+09:00. The gap between them is 8 hours, with KST ahead. So 9:00 am in BST is
5:00 pm in KST, and 5:00 pm in BST is
1:00 am in KST. Going the other way, see KST to BST.
The gap is not constant, and that is the part that catches people out
British Summer Time is currently observing daylight saving and changes next on 25 October 2026, when clocks go back an hour. Korea Standard Time does not observe daylight saving at all, so the whole of the seasonal change comes
from the BST side: the gap moves by an hour twice a year even though nothing changes in
Korea Standard Time.
When you can actually both be at work
Taking a working day as 9:00 am to 5:00 pm local at each end, there
are0 overlapping hours
in a normal day. There is none: the two working days do not touch at all, so any live meeting between British Summer Time and Korea Standard Time has to sit outside somebody's normal hours. The table above shows which end has the shorter stretch to give up.
Zone rules are set by legislation and change, sometimes at short notice. This page is
built against tzdata 2026a, last reviewed
2026-08-18. Quarterly. Zone rules change by legislation, sometimes at short notice. Version and review date are shown on every zone page. The converter above reads
your browser's own copy of the zone database, so if a rule has changed since this page was built the
live answer follows the new rule — and so does everything above, which is worked out from the same
database when you open the page.
Every convention used above — whether the start date counts, how month ends are
clamped, which holidays close an office — is written out on the
methodology page, including the daylight-saving rules behind the 8-hour gap above.
The current offset is shown at the top of this page. It is computed for today's date rather than quoted as an average, because the two regions change their clocks on different dates and the gap is different for a few weeks each year.
Is BST the same as British Summer Time all year?
Not necessarily. Standard time and summer time are separate zones with separate abbreviations, so much of the year the technically correct abbreviation is the daylight one. The page states which is in force on today's date.
When do the clocks change in these zones?
The next change date for each zone is shown in the result panel, along with what the offset becomes afterwards.
What is a good meeting time between BST and KST?
The business-hours overlap window is shown below the converter. Where there is no overlap the page says so rather than suggesting an impossible time.
This page could not bring itself up to date in your
browser, so the dates above are the ones worked out on 28 August 2026. They are exact for
that date and do not change by themselves. Enter your own dates in the calculator above for an
answer worked out now.