Time zone converter
KST to UTC
Convert Korea Time — Seoul to Coordinated Universal Time — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Seoul, it's 12:00 AM in UTC. UTC is 9 hours behind Seoul. Use the converter above to turn any KST time into UTC, or scan the hour-by-hour table below for the full day.
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Korea Time — Seoul ·
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Coordinated Universal Time ·
Convert a specific timein Seoul → — in UTC
KST to UTC at a glance
9:00 AM KST
12:00 AM
UTC · UTC
12:00 PM KST
3:00 AM
UTC · UTC
5:00 PM KST
8:00 AM
UTC · UTC
Planning a meeting between Seoul and UTC
Seoul and UTC share no standard 9-to-5 overlap, so a live call usually means one side taking an early-morning or late-evening slot. The hourly table below helps you pick the least-inconvenient time for everyone.
Hour-by-hour: Seoul to UTC
A full day mapped from KST to UTC.
Frequently asked
Is UTC ahead of or behind Seoul?
UTC is 9 hours behind Seoul.
What is 12:00 PM KST in UTC?
12:00 PM in Seoul is 3:00 AM in UTC.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so KST and UTC automatically reflect the correct daylight-saving offset for the current date.