What is CST in KST?
Korea Standard Time is 15 hours ahead
Convert a time
KST — Korea Standard Time
5:00 pm
KST, Sat
- Time in Chicago
- 2:29:15 AM
- Time in Seoul
- 5:29:15 PM
- Difference
- +15 h
- Next clock change
- March 14, 2027
When the difference changes
Central Time and Korea Standard 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, 2027Korea Standard Time is 15 hours ahead
- March 14, 2027 – November 7, 2027Korea Standard Time is 14 hours ahead
- November 7, 2027 – onwardsKorea Standard Time is 15 hours ahead
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
Central Time
Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on CDT after that.
Korea Standard Time
Korea Standard Time stays on KST all year, so its offset from UTC never moves.
CST to KST conversion table
Every hour of Saturday, November 7, 2026, converted from Central Time to Korea Standard Time. 15 of the 24 hours fall on a different calendar day in Seoul, which is marked.
- 12:00 am CST
- 3:00 pm KST
- 1:00 am CST
- 4:00 pm KST
- 2:00 am CST
- 5:00 pm KST
- 3:00 am CST
- 6:00 pm KST
- 4:00 am CST
- 7:00 pm KST
- 5:00 am CST
- 8:00 pm KST
- 6:00 am CST
- 9:00 pm KST
- 7:00 am CST
- 10:00 pm KST
- 8:00 am CST
- 11:00 pm KST
- 9:00 am CST
- 12:00 am KST+1 day
- 10:00 am CST
- 1:00 am KST+1 day
- 11:00 am CST
- 2:00 am KST+1 day
- 12:00 pm CST
- 3:00 am KST+1 day
- 1:00 pm CST
- 4:00 am KST+1 day
- 2:00 pm CST
- 5:00 am KST+1 day
- 3:00 pm CST
- 6:00 am KST+1 day
- 4:00 pm CST
- 7:00 am KST+1 day
- 5:00 pm CST
- 8:00 am KST+1 day
- 6:00 pm CST
- 9:00 am KST+1 day
- 7:00 pm CST
- 10:00 am KST+1 day
- 8:00 pm CST
- 11:00 am KST+1 day
- 9:00 pm CST
- 12:00 pm KST+1 day
- 10:00 pm CST
- 1:00 pm KST+1 day
- 11:00 pm CST
- 2:00 pm KST+1 day
Scheduling between the two
There is no overlap between a nine-to-six working day in Chicago and one in Seoul — the gap is too wide. A call has to sit early or late for one side. Early morning in Chicago is the usual compromise, since that is late afternoon or evening in Seoul.
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
- KST to CST
- CST to UTC
- CST to GMT
- CST to EST
- CST to MST
- CST to PST
- CST to AKST
- CST to HST
- CST to BST
- CST to CET
- CST to IST
- CST to CST (China)
- CST to JST
- CST to AEST
- CST to AST
- CST to Mexico City
- CST to BRT
- CST to ART
- CST to EET
- CST to WET
- CST to MSK
- CST to TRT
- CST to SAST
- CST to WAT
- CST to EAT
- CST to GST
- CST to PKT
- CST to ICT
- CST to WIB
- CST to SGT
- CST to HKT
- CST to PHT
- CST to AWST
- CST to ACST
- CST to NZST
- All zones