CST to KST Converter
Time Difference
Central Daylight Time is 14 hours behind Korea Standard Time
9:00 pm21:00 in CDT is 11:00 am11:00 in KST
CST to KST call time
Best time for a conference call or a meeting is between 5:30am-7:30am in CST which corresponds to 8:30pm-10:30pm in KST
9:00 pm21:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
11:00 am11:00 Korea Standard Time (KST). Offset UTC +9:00 hours
9:00 pm21:00 CDT / 11:00 am11:00 KST
CDT | KST |
---|---|
12am (midnight) | 2pm |
1am | 3pm |
2am | 4pm |
3am | 5pm |
4am | 6pm |
5am | 7pm |
6am | 8pm |
7am | 9pm |
8am | 10pm |
9am | 11pm |
10am | 12am (midnight) |
11am | 1am |
12pm (noon) | 2am |
1pm | 3am |
2pm | 4am |
3pm | 5am |
4pm | 6am |
5pm | 7am |
6pm | 8am |
7pm | 9am |
8pm | 10am |
9pm | 11am |
10pm | 12pm (noon) |
11pm | 1pm |
0:00 | 14:00 |
1:00 | 15:00 |
2:00 | 16:00 |
3:00 | 17:00 |
4:00 | 18:00 |
5:00 | 19:00 |
6:00 | 20:00 |
7:00 | 21:00 |
8:00 | 22:00 |
9:00 | 23:00 |
10:00 | 0:00 |
11:00 | 1:00 |
12:00 | 2:00 |
13:00 | 3:00 |
14:00 | 4:00 |
15:00 | 5:00 |
16:00 | 6:00 |
17:00 | 7:00 |
18:00 | 8:00 |
19:00 | 9:00 |
20:00 | 10:00 |
21:00 | 11:00 |
22:00 | 12:00 |
23:00 | 13:00 |
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States
Principal Cities: The largest city in the CST timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Houston, Iztapalapa, Ecatepec
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central Daylight Time (CDT).
End: Central Standard Time (CST) has ended on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Central Standard Time (CST) starts on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
CST representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates six hour and zero minutes time differences to the west of the zero meridian.
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Chihuahua
- America/Costa_Rica
- America/El_Salvador
- America/Guatemala
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Managua
- America/Matamoros
- America/Menominee
- America/Merida
- America/Mexico_City
- America/Monterrey
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Regina
- America/Resolute
- America/Swift_Current
- America/Tegucigalpa
- America/Winnipeg
- CST6CDT
- Canada/Central
- Canada/Saskatchewan
- Mexico/General
- US/Central
- US/Indiana-Starke
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- Colombia Standard Time - UTC -5
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Korea Standard Time
Offset: KST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Korea (North), Korea (South)
Principal Cities: The largest city in the KST timezone is Seoul from South Korea with population about 10.349 million people. Other major cities in the area are Busan, Pyongyang, Incheon, Daegu
Daylight Saving: Korea Standard Time (KST) is not adjusted for daylight saving therefore KST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Korea Standard Time remains the same

KST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates nine hour and zero minutes time differences to the east of the zero meridian.
- India - Military abbreviation for KST
- I - short form of 'India'
- Asia/Pyongyang
- Asia/Seoul
- ROK
- Korea Standard Time - UTC +9
- Pyongyang Time - UTC +8:30
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time