Seoul Time to CST Converter
CST is 15 hours behind KST. 9:00 AM KST = 6:00 PM CST (previous day).
CST is 15 hours behind KST at the moment. To convert Seoul Time to CST, subtract 15 hours from the Seoul Time time: 9:00 AM KST = 6:00 PM CST (previous day).
Seoul Time (Seoul time) is used in Seoul, South Korea. CST (Central Time) is used in Chicago, Dallas, Houston, Minneapolis, New Orleans, Winnipeg; Mexico City and Central America use UTC−6 all year.
CST here means North American Central Standard Time, not China Standard Time.
Seoul Time to CST time conversion table
Seoul Time to CST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Seoul Time | CST | Day |
|---|---|---|
| 12:00 AM KST | 9:00 AM CST | previous day |
| 1:00 AM KST | 10:00 AM CST | previous day |
| 2:00 AM KST | 11:00 AM CST | previous day |
| 3:00 AM KST | 12:00 PM CST | previous day |
| 4:00 AM KST | 1:00 PM CST | previous day |
| 5:00 AM KST | 2:00 PM CST | previous day |
| 6:00 AM KST | 3:00 PM CST | previous day |
| 7:00 AM KST | 4:00 PM CST | previous day |
| 8:00 AM KST | 5:00 PM CST | previous day |
| 9:00 AM KST | 6:00 PM CST | previous day |
| 10:00 AM KST | 7:00 PM CST | previous day |
| 11:00 AM KST | 8:00 PM CST | previous day |
| 12:00 PM KST | 9:00 PM CST | previous day |
| 1:00 PM KST | 10:00 PM CST | previous day |
| 2:00 PM KST | 11:00 PM CST | previous day |
| 3:00 PM KST | 12:00 AM CST | night |
| 4:00 PM KST | 1:00 AM CST | night |
| 5:00 PM KST | 2:00 AM CST | night |
| 6:00 PM KST | 3:00 AM CST | night |
| 7:00 PM KST | 4:00 AM CST | night |
| 8:00 PM KST | 5:00 AM CST | night |
| 9:00 PM KST | 6:00 AM CST | — |
| 10:00 PM KST | 7:00 AM CST | — |
| 11:00 PM KST | 8:00 AM CST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Seoul Time to CST
Subtract 15 hours from the Seoul Time time to get CST.
Example: 9:00 AM KST = 6:00 PM CST (previous day).
Across midnight: 1:00 AM KST = 10:00 AM CST (previous day). The date changes, so always check the day as well as the hour.
Time difference between Seoul Time and CST
The time difference between Seoul Time and CST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: CST is 15 hours behind of Seoul Time.
- 8 Mar 2026 – 31 Oct 2026: CST is 14 hours behind of Seoul Time.
- 1 Nov 2026 – 31 Dec 2026: CST is 15 hours behind of Seoul Time.
Seoul Time and CST during daylight saving time
- Seoul Time does not observe daylight saving time; it stays on UTC+9 all year.
- CST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
Best time for a meeting between Seoul Time and CST
Seoul Time and CST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM KST, which is 4:00 PM CST.
Seoul Time to CST FAQ
What is the time difference between Seoul Time and CST?
Right now CST is 15 hours behind KST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Seoul Time in CST?
9:00 AM KST is 6:00 PM CST (previous day).
What is 12 PM (noon) Seoul Time in CST?
12:00 PM KST is 9:00 PM CST (previous day).
Is CST ahead of or behind Seoul Time?
CST is 15 hours behind KST, so it is earlier in CST 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 CST change for daylight saving time?
Yes. CST next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
What is the best time for a meeting between Seoul Time and CST?
Seoul Time and CST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM KST, which is 4:00 PM CST.
Is CT the same as CST?
CST is the winter (standard) name of Central Time (CT). From March to November the same clocks are called CDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert CST to Seoul Time
Convert Seoul Time to other time zones
Convert other time zones to CST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.