TimeToZone

KST to CST Converter

CST is 15 hours behind KST. 9:00 AM KST = 6:00 PM CST (previous day).

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KSTfrom
Korea Standard Time
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CST
Central Standard Time
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CST is 15 hours behind KST at the moment. To convert KST to CST, subtract 15 hours from the KST time: 9:00 AM KST = 6:00 PM CST (previous day).

KST (Korea Time) is used in 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.

KST to CST time conversion table

KST to CST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.

KSTCSTDay
12:00 AM KST9:00 AM CSTprevious day
1:00 AM KST10:00 AM CSTprevious day
2:00 AM KST11:00 AM CSTprevious day
3:00 AM KST12:00 PM CSTprevious day
4:00 AM KST1:00 PM CSTprevious day
5:00 AM KST2:00 PM CSTprevious day
6:00 AM KST3:00 PM CSTprevious day
7:00 AM KST4:00 PM CSTprevious day
8:00 AM KST5:00 PM CSTprevious day
9:00 AM KST6:00 PM CSTprevious day
10:00 AM KST7:00 PM CSTprevious day
11:00 AM KST8:00 PM CSTprevious day
12:00 PM KST9:00 PM CSTprevious day
1:00 PM KST10:00 PM CSTprevious day
2:00 PM KST11:00 PM CSTprevious day
3:00 PM KST12:00 AM CSTnight
4:00 PM KST1:00 AM CSTnight
5:00 PM KST2:00 AM CSTnight
6:00 PM KST3:00 AM CSTnight
7:00 PM KST4:00 AM CSTnight
8:00 PM KST5:00 AM CSTnight
9:00 PM KST6:00 AM CST—
10:00 PM KST7:00 AM CST—
11:00 PM KST8:00 AM CST—
  • Work rows — 9 AM–5 PM in both places
  • Night in the destination (10 PM–6 AM)

How to convert KST to CST

Subtract 15 hours from the KST 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 KST and CST

The time difference between KST 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 KST.
  • 8 Mar 2026 – 31 Oct 2026: CST is 14 hours behind of KST.
  • 1 Nov 2026 – 31 Dec 2026: CST is 15 hours behind of KST.

KST and CST during daylight saving time

  • KST 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 KST and CST

KST 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.

Plan a meeting across more time zones.

KST to CST FAQ

What is the time difference between KST 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 KST in CST?

9:00 AM KST is 6:00 PM CST (previous day).

What is 12 PM (noon) KST in CST?

12:00 PM KST is 9:00 PM CST (previous day).

Is CST ahead of or behind KST?

CST is 15 hours behind KST, so it is earlier in CST than in KST.

Does KST change for daylight saving time?

No. KST 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 KST and CST?

KST 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 KST

Convert KST to other time zones

Convert other time zones to CST

Learn more

Updated 7 November 2026. Time zone data: IANA tz database.