KST to London Time Converter
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Quick answers
Selected conversion
9:00 pm21:00 KST (UTC+9), Oct 18, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 18, 2026
KST is 8 hours ahead of London.
How the time difference changes
For most of the year, KST is 8 hours ahead of London. From Oct 25, 2026 to Mar 28, 2027, KST is 9 hours ahead of London.
For most of the year, working hours of 9:00 am to 6:00 pm in KST correspond to 1:00 am to 10:00 am in London. At other times of the year, working hours of 9:00 am to 6:00 pm in KST correspond to 12:00 am to 9:00 am in London.For most of the year, working hours of 09:00 to 18:00 in KST correspond to 01:00 to 10:00 in London. At other times of the year, working hours of 09:00 to 18:00 in KST correspond to 00:00 to 09:00 in London.
Compare KST time with London time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Korea Standard Time is 8 hours ahead of BST (British Summer Time).
9:00 pm21:00 in KST is 1:00 pm13:00 in London, United Kingdom
KST to London call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in KST which corresponds to 9am-10am09:00-10:00 in London
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours
1:00 pm13:00 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour
9:00 pm21:00 KST / 1:00 pm13:00 London, United Kingdom
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Korea Standard Time
Offset: KST is 9 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: North Korea, South Korea
Principal Cities: The largest city in the KST time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Busan, Pyongyang, Incheon, Daegu.
Daylight Saving: Clocks in Korea Standard Time (KST) do not change for daylight saving time, so KST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
KST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
- India - Military abbreviation for KST
- I - short form of 'India'
- Asia/Pyongyang
- Asia/Seoul
- ROK
- Korea Standard Time - UTC +9
- Pyongyang Time - UTC +8:30
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
London Time Zone and Facts
Time Zone
GMT – Greenwich Mean Time, UTC+0 (standard time)