KST to CST Time Converter

Convert Korea Standard Time (KST) to Central Standard Time (CST). Both time zones are shown live below; current offset between them is 14 hours behind.

Seoul · Korea Standard Time
09:57:09
Monday, May 11, 2026
GMT+9 · UTC+09:00
Chicago · Central Standard Time
19:57:09
Sunday, May 10, 2026
CDT · UTC-05:00

Convert a specific time

From: KST (Seoul)
To: CST (Chicago)
--:--

Daylight Saving status right now

KST (Korea Standard Time)
Observes DST
No
CST (Central Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-11-01
Offset shift
UTC-05:00 → UTC-06:00

Heads up: CST observes DST while KST does not. The 14-hour difference shown above will shift by one hour when CST starts or ends DST.

When can KST and CST meet?

00
01
02
03
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09
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KST
CST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Seoul (KST). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 08:00–08:00 KST (18:00–18:00 CST).

Hour-by-hour KST to CST conversion table

KST time (Seoul)CST time (Chicago)Status
00:00 Mon10:00 SunCST working
01:00 Mon11:00 SunCST working
02:00 Mon12:00 SunCST working
03:00 Mon13:00 SunCST working
04:00 Mon14:00 SunCST working
05:00 Mon15:00 SunCST working
06:00 Mon16:00 SunCST working
07:00 Mon17:00 SunOff-hours both sides
08:00 Mon18:00 SunOff-hours both sides
09:00 Mon19:00 SunKST working
10:00 Mon20:00 SunKST working
11:00 Mon21:00 SunKST working
12:00 Mon22:00 SunKST working
13:00 Mon23:00 SunKST working
14:00 Mon00:00 MonKST working
15:00 Mon01:00 MonKST working
16:00 Mon02:00 MonKST working
17:00 Mon03:00 MonOff-hours both sides
18:00 Mon04:00 MonOff-hours both sides
19:00 Mon05:00 MonOff-hours both sides
20:00 Mon06:00 MonOff-hours both sides
21:00 Mon07:00 MonOff-hours both sides
22:00 Mon08:00 MonOff-hours both sides
23:00 Mon09:00 MonCST working

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Korea Standard Time (KST)
IANA identifier
Asia/Seoul
Current UTC offset
UTC+09:00
Current abbreviation
GMT+9
Major cities in this zone
SeoulBusan
Central Standard Time (CST)
IANA identifier
America/Chicago
Current UTC offset
UTC-05:00
Current abbreviation
CDT
Major cities in this zone
ChicagoHoustonDallasAustinNew Orleans

Sun today in Seoul and Chicago

Seoul
Sunrise
05:28
Sunset
19:31
Solar noon
12:29
Daylight
14h 3m
Chicago
Sunrise
05:37
Sunset
19:59
Solar noon
12:48
Daylight
14h 22m

Related converters

CST to KST (reverse)KST to ESTKST to PSTKST to GMTKST to UTCKST to CETEST to CSTPST to CSTGMT to CSTUTC to CSTCET to CST
Looking for local time? See time in Seoul or time in Chicago.

Frequently asked questions

What is the time difference between KST and CST right now?+
CST (Central Standard Time) is currently 14 hours behind KST (Korea Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does KST or CST observe daylight saving time?+
KST: does not observe daylight saving time. CST: observes daylight saving time.
When is the best time to schedule a meeting between KST and CST?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 08:00–08:00 KST (18:00–18:00 CST).
What time is it in Chicago when it is 12:00 noon in Seoul?+
When it is 12:00 Mon in Seoul (KST), it is 22:00 Sun in Chicago (CST).
Which IANA time zone identifiers are used for KST and CST?+
KST maps to "Asia/Seoul" in the IANA database. CST maps to "America/Chicago". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Seoul ahead of or behind Chicago?+
Whether Seoul (KST) is ahead of or behind Chicago (CST) depends on the current UTC offsets. Right now CST is 14 hours behind KST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for KST and CST?+
KST is UTC+09:00 (GMT+9) and CST is UTC-05:00 (CDT). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both KST and CST?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between KST and CST is 08:00–08:00 KST.