What is KST in CST?
Central Time is 15 hours behind
Convert a time
CST — Central Time
2:00 am
CST, Sat
- Time in Seoul
- 5:29:06 PM
- Time in Chicago
- 2:29:06 AM
- Difference
- −15 h
- Next clock change
- March 14, 2027
When the difference changes
Korea Standard Time and Central Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – March 14, 2027Central Time is 15 hours behind
- March 14, 2027 – November 7, 2027Central Time is 14 hours behind
- November 7, 2027 – onwardsCentral Time is 15 hours behind
Periods shorter than a day are not listed. Each zone changes at its own local time, so on a date when both move there are a few hours when the gap is briefly something else.
Daylight saving
Korea Standard Time
Korea Standard Time stays on KST all year, so its offset from UTC never moves.
Central Time
Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on CDT after that.
KST to CST conversion table
Every hour of Saturday, November 7, 2026, converted from Korea Standard Time to Central Time. 15 of the 24 hours fall on a different calendar day in Chicago, which is marked.
- 12:00 am KST
- 9:00 am CST−1 day
- 1:00 am KST
- 10:00 am CST−1 day
- 2:00 am KST
- 11:00 am CST−1 day
- 3:00 am KST
- 12:00 pm CST−1 day
- 4:00 am KST
- 1:00 pm CST−1 day
- 5:00 am KST
- 2:00 pm CST−1 day
- 6:00 am KST
- 3:00 pm CST−1 day
- 7:00 am KST
- 4:00 pm CST−1 day
- 8:00 am KST
- 5:00 pm CST−1 day
- 9:00 am KST
- 6:00 pm CST−1 day
- 10:00 am KST
- 7:00 pm CST−1 day
- 11:00 am KST
- 8:00 pm CST−1 day
- 12:00 pm KST
- 9:00 pm CST−1 day
- 1:00 pm KST
- 10:00 pm CST−1 day
- 2:00 pm KST
- 11:00 pm CST−1 day
- 3:00 pm KST
- 12:00 am CST
- 4:00 pm KST
- 1:00 am CST
- 5:00 pm KST
- 2:00 am CST
- 6:00 pm KST
- 3:00 am CST
- 7:00 pm KST
- 4:00 am CST
- 8:00 pm KST
- 5:00 am CST
- 9:00 pm KST
- 6:00 am CST
- 10:00 pm KST
- 7:00 am CST
- 11:00 pm KST
- 8:00 am CST
Scheduling between the two
There is no overlap between a nine-to-six working day in Seoul and one in Chicago — the gap is too wide. A call has to sit early or late for one side. Early morning in Seoul is the usual compromise, since that is late afternoon or evening in Chicago.
A note on CST: it can also mean China Standard Time (UTC+8) and Cuba Standard Time (UTC−5). This page means US Central Time.
Central Time (CST) is used in Dallas, Houston, Mexico City and Winnipeg
Other conversions
- CST to KST
- KST to UTC
- KST to GMT
- KST to EST
- KST to MST
- KST to PST
- KST to AKST
- KST to HST
- KST to BST
- KST to CET
- KST to IST
- KST to CST (China)
- KST to JST
- KST to AEST
- KST to AST
- KST to Mexico City
- KST to BRT
- KST to ART
- KST to EET
- KST to WET
- KST to MSK
- KST to TRT
- KST to SAST
- KST to WAT
- KST to EAT
- KST to GST
- KST to PKT
- KST to ICT
- KST to WIB
- KST to SGT
- KST to HKT
- KST to PHT
- KST to AWST
- KST to ACST
- KST to NZST
- All zones