KST to PDT to EST
Time Difference
Korea Standard Time is 16 hours ahead of Pacific Daylight Time and 13 hours ahead of Eastern Daylight Time
10:30 am10:30 in KST is 6:30 pm18:30 in PDT and is 9:30 pm21:30 in EDT
KST to PDT call time
Best time for a conference call or a meeting is between 9pm-11pm in KST which corresponds to 5am-7am in PDT
KST to EST call time
Best time for a conference call or a meeting is between 8pm-10pm in KST which corresponds to 6am-8am in EST
10:30 am10:30 Korea Standard Time (KST). Offset UTC +9:00 hours
6:30 pm18:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
9:30 pm21:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
10:30 am10:30 KST / 6:30 pm18:30 PDT / 9:30 pm21:30 EDT
| KST | PDT | EDT |
|---|---|---|
| 12am (midnight) | 8am | 11am |
| 1am | 9am | 12pm (noon) |
| 2am | 10am | 1pm |
| 3am | 11am | 2pm |
| 4am | 12pm (noon) | 3pm |
| 5am | 1pm | 4pm |
| 6am | 2pm | 5pm |
| 7am | 3pm | 6pm |
| 8am | 4pm | 7pm |
| 9am | 5pm | 8pm |
| 10am | 6pm | 9pm |
| 11am | 7pm | 10pm |
| 12pm (noon) | 8pm | 11pm |
| 1pm | 9pm | 12am (midnight) |
| 2pm | 10pm | 1am |
| 3pm | 11pm | 2am |
| 4pm | 12am (midnight) | 3am |
| 5pm | 1am | 4am |
| 6pm | 2am | 5am |
| 7pm | 3am | 6am |
| 8pm | 4am | 7am |
| 9pm | 5am | 8am |
| 10pm | 6am | 9am |
| 11pm | 7am | 10am |
| 0:00 | 8:00 | 11:00 |
| 1:00 | 9:00 | 12:00 |
| 2:00 | 10:00 | 13:00 |
| 3:00 | 11:00 | 14:00 |
| 4:00 | 12:00 | 15:00 |
| 5:00 | 13:00 | 16:00 |
| 6:00 | 14:00 | 17:00 |
| 7:00 | 15:00 | 18:00 |
| 8:00 | 16:00 | 19:00 |
| 9:00 | 17:00 | 20:00 |
| 10:00 | 18:00 | 21:00 |
| 11:00 | 19:00 | 22:00 |
| 12:00 | 20:00 | 23:00 |
| 13:00 | 21:00 | 0:00 |
| 14:00 | 22:00 | 1:00 |
| 15:00 | 23:00 | 2:00 |
| 16:00 | 0:00 | 3:00 |
| 17:00 | 1:00 | 4:00 |
| 18:00 | 2:00 | 5:00 |
| 19:00 | 3:00 | 6:00 |
| 20:00 | 4:00 | 7:00 |
| 21:00 | 5:00 | 8:00 |
| 22:00 | 6:00 | 9:00 |
| 23:00 | 7:00 | 10:00 |
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
- Krasnoyarsk Standard Time - UTC +6
- 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
Pacific Daylight Time
Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest city in the PDT timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose
French: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Pacific Standard Time (PST).
Start: Pacific Daylight Time (PDT) started 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. Daylight saving starts annually the on second Sunday of March
End: Pacific Daylight Time (PDT) ends 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 local standard time instead. Daylight saving ends annually the on 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 seven hour and zero minutes time differences 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
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States
Principal Cities: The largest city in the EST timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are Toronto, Montreal, Brooklyn, Borough of Queens
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
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 Eastern Daylight Time (EDT).
End: Eastern Standard Time (EST) 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: Eastern Standard Time (EST) 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.
EST 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 five hour and zero minutes time differences to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- 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/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
- 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