CST ↔ KST Time Converter

Convert CST to KST instantly. Central Standard Time is UTC-6 / UTC-5 (CDT) and Korea Standard Time is UTC+9 — a 15h ahead difference. Enter any time in either field — both are fully editable. Use the ⇄ button to swap directions.

🕐 Live Current Times

CST
--:--:--
--
Central Standard Time
15h ahead
⇄ KST→CST
KST
--:--:--
--
Korea Standard Time

⚡ Bidirectional Time Converter

CST (UTC-6 / UTC-5 (CDT)) → KST (UTC+9) · Difference: 15h ahead (auto-adjusts for DST)

ℹ️ Timezone Details

CST Offset
UTC-6 / UTC-5 (CDT)
KST Offset
UTC+9
Difference
15h ahead
CST Full Name
Central Standard Time
KST Full Name
Korea Standard Time
Vice Versa
KST → CST ↗

🤝 Best Meeting Hours Between CST and KST

Because KST is 15h ahead CST, use this table to plan calls that fall in reasonable working hours for both sides.

CSTKSTSuitability
7:00 AM10:00 PMGood — early morning start
8:00 AM11:00 PMBest overlap
9:00 AM12:00 AMBest overlap
10:00 AM1:00 AMBest overlap
11:00 AM2:00 AMGood — late afternoon

🏙️ Cities Covered by Each Time Zone

CST Cities
Chicago, Dallas, Houston, Minneapolis, Kansas City, New Orleans
KST Cities
Seoul, Busan, Incheon, Daegu, Daejeon, Gwangju

Note: Some timezones observe Daylight Saving Time, so the offset may change seasonally. The live clocks and converter on this page adjust automatically.

📋 Full 24-Hour Conversion Table — CST to KST

CST (12h)CST (24h)KST (12h)KST (24h)DayType
12:00 AM00:003:00 PM15:00—Night
1:00 AM01:004:00 PM16:00—Night
2:00 AM02:005:00 PM17:00—Night
3:00 AM03:006:00 PM18:00—Night
4:00 AM04:007:00 PM19:00—Night
5:00 AM05:008:00 PM20:00—Night
6:00 AM06:009:00 PM21:00—
7:00 AM07:0010:00 PM22:00—
8:00 AM08:0011:00 PM23:00—
9:00 AM09:0012:00 AM00:00+1 DayBusiness
10:00 AM10:001:00 AM01:00+1 DayBusiness
11:00 AM11:002:00 AM02:00+1 DayBusiness
12:00 PM12:003:00 AM03:00+1 DayBusiness
1:00 PM13:004:00 AM04:00+1 DayBusiness
2:00 PM14:005:00 AM05:00+1 DayBusiness
3:00 PM15:006:00 AM06:00+1 DayBusiness
4:00 PM16:007:00 AM07:00+1 DayBusiness
5:00 PM17:008:00 AM08:00+1 DayBusiness
6:00 PM18:009:00 AM09:00+1 Day
7:00 PM19:0010:00 AM10:00+1 Day
8:00 PM20:0011:00 AM11:00+1 Day
9:00 PM21:0012:00 PM12:00+1 Day
10:00 PM22:001:00 PM13:00+1 DayNight
11:00 PM23:002:00 PM14:00+1 DayNight

Note: this table uses a fixed offset. During Daylight Saving Time the difference may change — use the live converter above which adjusts automatically.

🔗 Related Converters

💡 How to Convert CST to KST

1
Find the offset — Central Standard Time is UTC-6 / UTC-5 (CDT) and Korea Standard Time is UTC+9. The difference between them is 15h ahead.
2
Use either input field — Type a time in the CST field to get the KST equivalent, or type in the KST field to get the CST time. Both fields are editable.
3
Swap directions — Click ⇄ to instantly swap the conversion direction, or visit the KST to CST page.
4
Check the table — The 24-hour reference table shows every hour converted, with working hours marked green and late night/early morning marked orange.
5
Watch for day changes — Some times cross midnight, so a "+1 Day" or "-1 Day" note appears to show the date is different in the converted timezone.

❓ FAQ — CST to KST

What is the time difference between CST and KST?

Korea Standard Time (KST) is 15h ahead Central Standard Time (CST).

How do I convert CST to KST?

Use the converter above — type any time in the CST field and the KST result appears instantly. You can also refer to the 24-hour table on this page.

Is KST ahead or behind CST?

Korea Standard Time (KST) is 15h ahead Central Standard Time (CST).

How do I convert KST back to CST?

Simply type in the KST field in the bidirectional converter above — it works in both directions. Or visit the dedicated KST to CST converter page.

What is the best overlap time for meetings between CST and KST?

Use the meeting hours table above to find windows where both timezones fall within reasonable working hours.