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UTC to KST Converter

KST is 9 hours ahead of UTC

Current UTC Time
--:--:-- --
Etc/UTC
Current KST Time
--:--:-- --
Asia/Seoul
Time Diff
9h ahead
UTC
UTC+0
KST
UTC+9

UTC to KST Conversion Table

Green rows indicate standard business hours (9 AM – 5 PM) in KST

UTC to KST time conversion table showing all 24 hours
UTC KST
12:00 AM 9:00 AM
1:00 AM 10:00 AM
2:00 AM 11:00 AM
3:00 AM 12:00 PM
4:00 AM 1:00 PM
5:00 AM 2:00 PM
6:00 AM 3:00 PM
7:00 AM 4:00 PM
8:00 AM 5:00 PM
9:00 AM 6:00 PM
10:00 AM 7:00 PM
11:00 AM 8:00 PM
12:00 PM 9:00 PM
1:00 PM 10:00 PM
2:00 PM 11:00 PM
3:00 PM 12:00 AM +1d
4:00 PM 1:00 AM +1d
5:00 PM 2:00 AM +1d
6:00 PM 3:00 AM +1d
7:00 PM 4:00 AM +1d
8:00 PM 5:00 AM +1d
9:00 PM 6:00 AM +1d
10:00 PM 7:00 AM +1d
11:00 PM 8:00 AM +1d

Converting Coordinated Universal Time to Korea Standard Time

Coordinated Universal Time (UTC) and Korea Standard Time (KST) are separated by a 9 hours time difference. KST is 9 hours ahead of UTC. UTC is UTC+0, while KST is UTC+9, used in South Korea.

When converting from UTC to KST, the key reference points to remember are: 9:00 AM UTC equals 6:00 PM KST, 12:00 PM noon UTC equals 9:00 PM KST, and 5:00 PM UTC equals 2:00 AM KST. The conversion table above shows every hour of the day mapped between these two time zones.

Scheduling Across UTC and KST

For professionals scheduling meetings between UTC and KST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 9 hours difference, the window of overlap may be limited, making early morning or late evening calls necessary for one party. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.

Daylight Saving Time Considerations

UTC does not observe Daylight Saving Time, maintaining UTC+0 year-round. KST does not observe DST, staying at UTC+9 year-round.

Frequently Asked Questions

What is the time difference between UTC and KST?
Korea Standard Time (KST) is 9 hours ahead of Coordinated Universal Time (UTC). When it is 12:00 PM noon in UTC, it is 9:00 PM in KST.
How do I convert UTC to KST?
To convert UTC to KST, add 9 hours to the UTC time. For example, 9:00 AM UTC is 6:00 PM KST. Use the conversion table above for a quick reference of all 24 hours.
Does UTC or KST observe Daylight Saving Time?
UTC does not observe Daylight Saving Time. KST does not observe Daylight Saving Time. During DST transitions, the time difference between these zones may change by 1 hour.
What is the best time to schedule a call between UTC and KST?
The best time to schedule a call between UTC and KST is during overlapping business hours. If you are in UTC, try scheduling between 9:00 AM and 5:00 PM your time, then check the conversion table above to see what that corresponds to in KST.
Is UTC ahead or behind KST?
UTC (UTC+0) is 9 hours behind KST (UTC+9). UTC corresponds to the IANA time zone Etc/UTC, while KST corresponds to Asia/Seoul.

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Time Zone Info