London
Seoul
Convert GMT to KST
Greenwich Mean Time to Korea Standard Time — Seoul is 8 hours ahead of London
Quick Facts
Time Difference
+8 hours
GMT Full Name
Greenwich Mean Time
KST Full Name
Korea Standard Time
GMT to KST Conversion Table
Related Conversions
About GMT and KST Time Zones
GMT (Greenwich Mean Time) is UTC+0 and covers cities like London, Dublin, Lisbon. KST (Korea Standard Time) is UTC+9 and covers cities like Seoul, Busan, Incheon.
When it's 12:00 PM (noon) in London (GMT), it's 8:00 PM in Seoul (KST). The time difference between GMT and KST is 8 hours — Seoul is ahead of London.
A workday starting at 9 AM in London corresponds to 6:00 PM in Seoul, giving a short overlap window for morning meetings.
Use our world clock tool to compare London and Seoul with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between GMT and KST?
Seoul (KST) is 8 hours ahead of London (GMT). The offset is +8 hours.
Is KST ahead or behind GMT?
KST is 8 hours ahead of GMT. GMT is UTC+1 and KST is UTC+9.
When it's 12:00 PM in London, what time is it in Seoul?
When it's 12:00 PM (noon) in London (GMT), it's 8:00 PM in Seoul (KST).
When it's 5:00 PM in London, what time is it in Seoul?
When it's 5:00 PM in London (GMT), it's 1:00 AM in Seoul (KST).