What is BST in KST?
Korea Standard Time is 9 hours ahead
Convert a time
KST — Korea Standard Time
5:00 pm
KST, Sat
- Time in London
- 8:29:21 AM
- Time in Seoul
- 5:29:21 PM
- Difference
- +9 h
- Next clock change
- March 28, 2027
When the difference changes
British Time and Korea Standard Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – March 28, 2027Korea Standard Time is 9 hours ahead
- March 28, 2027 – October 31, 2027Korea Standard Time is 8 hours ahead
- October 31, 2027 – onwardsKorea Standard Time is 9 hours ahead
Periods shorter than a day are not listed. Each zone changes at its own local time, so on a date when both move there are a few hours when the gap is briefly something else.
Daylight saving
British Time
Clocks go forward one hour — 1:00 am becomes 2:00 am local time, and the zone is on BST after that.
Korea Standard Time
Korea Standard Time stays on KST all year, so its offset from UTC never moves.
BST to KST conversion table
Every hour of Saturday, November 7, 2026, converted from British Time to Korea Standard Time. 9 of the 24 hours fall on a different calendar day in Seoul, which is marked.
- 12:00 am GMT
- 9:00 am KST
- 1:00 am GMT
- 10:00 am KST
- 2:00 am GMT
- 11:00 am KST
- 3:00 am GMT
- 12:00 pm KST
- 4:00 am GMT
- 1:00 pm KST
- 5:00 am GMT
- 2:00 pm KST
- 6:00 am GMT
- 3:00 pm KST
- 7:00 am GMT
- 4:00 pm KST
- 8:00 am GMT
- 5:00 pm KST
- 9:00 am GMT
- 6:00 pm KST
- 10:00 am GMT
- 7:00 pm KST
- 11:00 am GMT
- 8:00 pm KST
- 12:00 pm GMT
- 9:00 pm KST
- 1:00 pm GMT
- 10:00 pm KST
- 2:00 pm GMT
- 11:00 pm KST
- 3:00 pm GMT
- 12:00 am KST+1 day
- 4:00 pm GMT
- 1:00 am KST+1 day
- 5:00 pm GMT
- 2:00 am KST+1 day
- 6:00 pm GMT
- 3:00 am KST+1 day
- 7:00 pm GMT
- 4:00 am KST+1 day
- 8:00 pm GMT
- 5:00 am KST+1 day
- 9:00 pm GMT
- 6:00 am KST+1 day
- 10:00 pm GMT
- 7:00 am KST+1 day
- 11:00 pm GMT
- 8:00 am KST+1 day
Scheduling between the two
There is no overlap between a nine-to-six working day in London and one in Seoul — the gap is too wide. A call has to sit early or late for one side. Early morning in London is the usual compromise, since that is late afternoon or evening in Seoul.
A note on BST: it can also mean Bangladesh Standard Time (UTC+6). This page means British Summer Time.
British Time (GMT) is used in the whole United Kingdom. In winter the UK is on GMT; from late March to late October it is on BST, an hour ahead.
Other conversions
- KST to BST
- BST to UTC
- BST to GMT
- BST to EST
- BST to CST
- BST to MST
- BST to PST
- BST to AKST
- BST to HST
- BST to CET
- BST to IST
- BST to CST (China)
- BST to JST
- BST to AEST
- BST to AST
- BST to Mexico City
- BST to BRT
- BST to ART
- BST to EET
- BST to WET
- BST to MSK
- BST to TRT
- BST to SAST
- BST to WAT
- BST to EAT
- BST to GST
- BST to PKT
- BST to ICT
- BST to WIB
- BST to SGT
- BST to HKT
- BST to PHT
- BST to AWST
- BST to ACST
- BST to NZST
- All zones