Seoul Time to UTC Converter
UTC is 9 hours behind KST. 9:00 AM KST = 12:00 AM UTC.
UTC is 9 hours behind KST. To convert Seoul Time to UTC, subtract 9 hours from the Seoul Time time: 9:00 AM KST = 12:00 AM UTC.
Seoul Time (Seoul time) is used in Seoul, South Korea. UTC (UTC) is used in The world's time standard; used in aviation, computing and science.
Seoul Time to UTC time conversion table
Seoul Time to UTC on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Seoul Time | UTC |
|---|---|
| 12:00 AM | 3:00 PM−1 |
| 1:00 AM | 4:00 PM−1 |
| 2:00 AM | 5:00 PM−1 |
| 3:00 AM | 6:00 PM−1 |
| 4:00 AM | 7:00 PM−1 |
| 5:00 AM | 8:00 PM−1 |
| 6:00 AM | 9:00 PM−1 |
| 7:00 AM | 10:00 PM−1 |
| Seoul Time | UTC |
|---|---|
| 8:00 AM | 11:00 PM−1 |
| 9:00 AM | 12:00 AM |
| 10:00 AM | 1:00 AM |
| 11:00 AM | 2:00 AM |
| 12:00 PM | 3:00 AM |
| 1:00 PM | 4:00 AM |
| 2:00 PM | 5:00 AM |
| 3:00 PM | 6:00 AM |
| Seoul Time | UTC |
|---|---|
| 4:00 PM | 7:00 AM |
| 5:00 PM | 8:00 AM |
| 6:00 PM | 9:00 AM |
| 7:00 PM | 10:00 AM |
| 8:00 PM | 11:00 AM |
| 9:00 PM | 12:00 PM |
| 10:00 PM | 1:00 PM |
| 11:00 PM | 2:00 PM |
Conversion table from Seoul Time to UTC for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in UTC, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert Seoul Time to UTC
Subtract 9 hours from the Seoul Time time to get UTC.
Example: 9:00 AM KST = 12:00 AM UTC.
Across midnight: 1:00 AM KST = 4:00 PM UTC (previous day). The date changes, so always check the day as well as the hour.
Time difference between Seoul Time and UTC
The time difference between Seoul Time and UTC is 9 hours all year – UTC is behind KST.
Seoul Time and UTC during daylight saving time
- Seoul Time does not observe daylight saving time; it stays on UTC+9 all year.
- UTC does not observe daylight saving time; it stays on UTC+0 all year.
Best time for a meeting between Seoul Time and UTC
Seoul Time and UTC have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM KST, which is 10:00 PM UTC.
Seoul Time to UTC FAQ
What is the time difference between Seoul Time and UTC?
UTC is 9 hours behind KST all year. 9:00 AM KST = 12:00 AM UTC.
What is 9 AM Seoul Time in UTC?
9:00 AM KST is 12:00 AM UTC.
What is 12 PM (noon) Seoul Time in UTC?
12:00 PM KST is 3:00 AM UTC.
Is UTC ahead of or behind Seoul Time?
UTC is 9 hours behind KST, so it is earlier in UTC than in Seoul Time.
Does Seoul Time change for daylight saving time?
No. Seoul Time stays on the same offset all year, so conversions never shift for daylight saving time.
Does UTC change for daylight saving time?
No. UTC stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Seoul Time and UTC?
Seoul Time and UTC have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM KST, which is 10:00 PM UTC.
Related conversions
Convert UTC to Seoul Time
Convert Seoul Time to other time zones
Convert other time zones to UTC
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.