KST to EDT to CDT to PDT to BST Time Converter
Quick answers
Selected conversion
9:00 pm21:00 KST (UTC+9), Oct 10, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 10, 2026 = 7:00 am07:00 CDT (UTC-5), Oct 10, 2026 = 5:00 am05:00 PDT (UTC-7), Oct 10, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 10, 2026
KST is 13 hours ahead of EDT. KST is 14 hours ahead of CDT. KST is 16 hours ahead of PDT. KST is 8 hours ahead of BST.
How the time difference changes
KST to EDT
For most of the year, KST is 13 hours ahead of EDT. At other times of the year, KST is 14 hours ahead of EST.
For most of the year, working hours of 9:00 am to 5:00 pm in KST correspond to 8:00 pm (previous day) to 4:00 am in EDT. At other times of the year, working hours of 9:00 am to 5:00 pm in KST correspond to 7:00 pm (previous day) to 3:00 am in EST.For most of the year, working hours of 09:00 to 17:00 in KST correspond to 20:00 (previous day) to 04:00 in EDT. At other times of the year, working hours of 09:00 to 17:00 in KST correspond to 19:00 (previous day) to 03:00 in EST.
KST to CDT
For most of the year, KST is 14 hours ahead of CDT. At other times of the year, KST is 15 hours ahead of CST.
For most of the year, working hours of 9:00 am to 5:00 pm in KST correspond to 7:00 pm (previous day) to 3:00 am in CDT. At other times of the year, working hours of 9:00 am to 5:00 pm in KST correspond to 6:00 pm (previous day) to 2:00 am in CST.For most of the year, working hours of 09:00 to 17:00 in KST correspond to 19:00 (previous day) to 03:00 in CDT. At other times of the year, working hours of 09:00 to 17:00 in KST correspond to 18:00 (previous day) to 02:00 in CST.
KST to PDT
For most of the year, KST is 16 hours ahead of PDT. At other times of the year, KST is 17 hours ahead of PST.
For most of the year, working hours of 9:00 am to 5:00 pm in KST correspond to 5:00 pm (previous day) to 1:00 am in PDT. At other times of the year, working hours of 9:00 am to 5:00 pm in KST correspond to 4:00 pm (previous day) to 12:00 am in PST.For most of the year, working hours of 09:00 to 17:00 in KST correspond to 17:00 (previous day) to 01:00 in PDT. At other times of the year, working hours of 09:00 to 17:00 in KST correspond to 16:00 (previous day) to 00:00 in PST.
KST to BST
For most of the year, KST is 8 hours ahead of BST. At other times of the year, KST is 9 hours ahead of GMT.
For most of the year, working hours of 9:00 am to 5:00 pm in KST correspond to 1:00 am to 9:00 am in BST. At other times of the year, working hours of 9:00 am to 5:00 pm in KST correspond to 12:00 am to 8:00 am in GMT.For most of the year, working hours of 09:00 to 17:00 in KST correspond to 01:00 to 09:00 in BST. At other times of the year, working hours of 09:00 to 17:00 in KST correspond to 00:00 to 08:00 in GMT.
Compare KST time with EDT, CDT, PDT, and BST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Korea Standard Time is 13 hours ahead of Eastern Daylight Time. Korea Standard Time is 14 hours ahead of Central Daylight Time. Korea Standard Time is 16 hours ahead of Pacific Daylight Time. Korea Standard Time is 8 hours ahead of British Summer Time.
9:00 pm21:00 in KST is 8:00 am08:00 in EDT and is 7:00 am07:00 in CDT and is 5:00 am05:00 in PDT and is 1:00 pm13:00 in BST
KST to EDT call time
Best time for a conference call or a meeting is between 7am-8am07:00-08:00 in KST which corresponds to 6pm-7pm18:00-19:00 in EDT (previous day)
KST to CDT call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in KST which corresponds to 5:30pm-6:30pm17:30-18:30 in CDT (previous day)
KST to PDT call time
Best time for a conference call or a meeting is between 8:30am-9:30am08:30-09:30 in KST which corresponds to 4:30pm-5:30pm16:30-17:30 in PDT (previous day)
KST to BST call time
Best time for a conference call or a meeting is between 4:30pm-5:30pm16:30-17:30 in KST which corresponds to 8:30am-9:30am08:30-09:30 in BST
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
9:00 pm21:00 KST / 8:00 am08:00 EDT / 7:00 am07:00 CDT / 5:00 am05:00 PDT / 1:00 pm13:00 BST
| KST | EDT | CDT | PDT | BST |
|---|---|---|---|---|
| 12:00am | 11:00am | 10:00am | 8:00am | 4:00pm |
| 1:00am | 12:00pm | 11:00am | 9:00am | 5:00pm |
| 2:00am | 1:00pm | 12:00pm | 10:00am | 6:00pm |
| 3:00am | 2:00pm | 1:00pm | 11:00am | 7:00pm |
| 4:00am | 3:00pm | 2:00pm | 12:00pm | 8:00pm |
| 5:00am | 4:00pm | 3:00pm | 1:00pm | 9:00pm |
| 6:00am | 5:00pm | 4:00pm | 2:00pm | 10:00pm |
| 7:00am | 6:00pm | 5:00pm | 3:00pm | 11:00pm |
| 8:00am | 7:00pm | 6:00pm | 4:00pm | 12:00am |
| 9:00am | 8:00pm | 7:00pm | 5:00pm | 1:00am |
| 10:00am | 9:00pm | 8:00pm | 6:00pm | 2:00am |
| 11:00am | 10:00pm | 9:00pm | 7:00pm | 3:00am |
| 12:00pm | 11:00pm | 10:00pm | 8:00pm | 4:00am |
| 1:00pm | 12:00am | 11:00pm | 9:00pm | 5:00am |
| 2:00pm | 1:00am | 12:00am | 10:00pm | 6:00am |
| 3:00pm | 2:00am | 1:00am | 11:00pm | 7:00am |
| 4:00pm | 3:00am | 2:00am | 12:00am | 8:00am |
| 5:00pm | 4:00am | 3:00am | 1:00am | 9:00am |
| 6:00pm | 5:00am | 4:00am | 2:00am | 10:00am |
| 7:00pm | 6:00am | 5:00am | 3:00am | 11:00am |
| 8:00pm | 7:00am | 6:00am | 4:00am | 12:00pm |
| 9:00pm | 8:00am | 7:00am | 5:00am | 1:00pm |
| 10:00pm | 9:00am | 8:00am | 6:00am | 2:00pm |
| 11:00pm | 10:00am | 9:00am | 7:00am | 3:00pm |
| 00:00 | 11:00 | 10:00 | 08:00 | 16:00 |
| 01:00 | 12:00 | 11:00 | 09:00 | 17:00 |
| 02:00 | 13:00 | 12:00 | 10:00 | 18:00 |
| 03:00 | 14:00 | 13:00 | 11:00 | 19:00 |
| 04:00 | 15:00 | 14:00 | 12:00 | 20:00 |
| 05:00 | 16:00 | 15:00 | 13:00 | 21:00 |
| 06:00 | 17:00 | 16:00 | 14:00 | 22:00 |
| 07:00 | 18:00 | 17:00 | 15:00 | 23:00 |
| 08:00 | 19:00 | 18:00 | 16:00 | 00:00 |
| 09:00 | 20:00 | 19:00 | 17:00 | 01:00 |
| 10:00 | 21:00 | 20:00 | 18:00 | 02:00 |
| 11:00 | 22:00 | 21:00 | 19:00 | 03:00 |
| 12:00 | 23:00 | 22:00 | 20:00 | 04:00 |
| 13:00 | 00:00 | 23:00 | 21:00 | 05:00 |
| 14:00 | 01:00 | 00:00 | 22:00 | 06:00 |
| 15:00 | 02:00 | 01:00 | 23:00 | 07:00 |
| 16:00 | 03:00 | 02:00 | 00:00 | 08:00 |
| 17:00 | 04:00 | 03:00 | 01:00 | 09:00 |
| 18:00 | 05:00 | 04:00 | 02:00 | 10:00 |
| 19:00 | 06:00 | 05:00 | 03:00 | 11:00 |
| 20:00 | 07:00 | 06:00 | 04:00 | 12:00 |
| 21:00 | 08:00 | 07:00 | 05:00 | 13:00 |
| 22:00 | 09:00 | 08:00 | 06:00 | 14:00 |
| 23:00 | 10:00 | 09:00 | 07:00 | 15:00 |
Korea Standard Time
Offset: KST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: Korea (North), Korea (South)
Principal Cities: The largest city in the KST time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Busan, Pyongyang, Incheon, Daegu.
Daylight Saving: Clocks in Korea Standard Time (KST) do not change for daylight saving time, so KST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
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 an offset of nine hours 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
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Bahamas, Canada, Haiti, Turks & Caicos Is, United States
Principal Cities: The largest city in the EDT time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Brooklyn, Borough of Queens, Montreal.
French: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste
Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Eastern Standard Time (EST).
Start: Eastern Daylight Time (EDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Eastern Daylight Time (EDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST5EDT
- US/East-Indiana
- US/Eastern
- US/Michigan
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- FKT - Falkland Island Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time
Central Daylight Time
Offset: CDT is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the CDT time zone is Chicago in the United States, with about 2.664 million people. Other major cities in this time zone include Houston, San Antonio, Ciudad Juarez, Dallas.
French: HAC - Heure Avancée du Centre
Spanish: CT - Zona Centro
Daylight Saving: Central Daylight Time (CDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Central Standard Time (CST).
Start: Central Daylight Time (CDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Central Daylight Time (CDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
CDT representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for CDT
- R - short form of 'Romeo'
- America/Chicago
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Matamoros
- America/Menominee
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Resolute
- America/Winnipeg
- CST6CDT
- Canada/Central
- US/Central
- US/Indiana-Starke
- Central Daylight Time - UTC -5
- Cuba Daylight Time - UTC -4
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
Pacific Daylight Time
Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.
French: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Pacific Standard Time (PST).
Start: Pacific Daylight Time (PDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Pacific Daylight Time (PDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
PDT representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone
British Summer Time
Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey
Principal Cities: The largest city in the BST time zone is London in United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Liverpool, Saint Helier.
Daylight Saving: British Summer Time (BST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Greenwich Mean Time (GMT).
Start: British Summer Time (BST) started on Sunday, March 29, 2026 at 1:00 am01:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 2:00 am02:00. Daylight saving starts annually on the last Sunday of March.
End: British Summer Time (BST) ends on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
BST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time