JST to EST to CT
Time Difference
Japan Standard Time is 14 hours ahead of Eastern Standard Time and 15 hours ahead of Central Time
12:30 am00:30 in JST is 10:30 am10:30 in EST and is 9:30 am09:30 in CT
JST to EST call time
Best time for a conference call or a meeting is between 8pm-10pm in JST which corresponds to 6am-8am in EST
JST to CT call time
Best time for a conference call or a meeting is between 8:30pm-10:30pm in JST which corresponds to 5:30am-7:30am in CT
12:30 am00:30 Japan Standard Time (JST). Offset UTC +9:00 hours
10:30 am10:30 Eastern Standard Time (EST). Offset UTC -5:00 hours
9:30 am09:30 Central Time (CT). Offset UTC -6:00 hours
12:30 am00:30 JST / 10:30 am10:30 EST / 9:30 am09:30 CT
| JST | EST | CT |
|---|---|---|
| 12am (midnight) | 10am | 9am |
| 1am | 11am | 10am |
| 2am | 12pm (noon) | 11am |
| 3am | 1pm | 12pm (noon) |
| 4am | 2pm | 1pm |
| 5am | 3pm | 2pm |
| 6am | 4pm | 3pm |
| 7am | 5pm | 4pm |
| 8am | 6pm | 5pm |
| 9am | 7pm | 6pm |
| 10am | 8pm | 7pm |
| 11am | 9pm | 8pm |
| 12pm (noon) | 10pm | 9pm |
| 1pm | 11pm | 10pm |
| 2pm | 12am (midnight) | 11pm |
| 3pm | 1am | 12am (midnight) |
| 4pm | 2am | 1am |
| 5pm | 3am | 2am |
| 6pm | 4am | 3am |
| 7pm | 5am | 4am |
| 8pm | 6am | 5am |
| 9pm | 7am | 6am |
| 10pm | 8am | 7am |
| 11pm | 9am | 8am |
| 0:00 | 10:00 | 9:00 |
| 1:00 | 11:00 | 10:00 |
| 2:00 | 12:00 | 11:00 |
| 3:00 | 13:00 | 12:00 |
| 4:00 | 14:00 | 13:00 |
| 5:00 | 15:00 | 14:00 |
| 6:00 | 16:00 | 15:00 |
| 7:00 | 17:00 | 16:00 |
| 8:00 | 18:00 | 17:00 |
| 9:00 | 19:00 | 18:00 |
| 10:00 | 20:00 | 19:00 |
| 11:00 | 21:00 | 20:00 |
| 12:00 | 22:00 | 21:00 |
| 13:00 | 23:00 | 22:00 |
| 14:00 | 0:00 | 23:00 |
| 15:00 | 1:00 | 0:00 |
| 16:00 | 2:00 | 1:00 |
| 17:00 | 3:00 | 2:00 |
| 18:00 | 4:00 | 3:00 |
| 19:00 | 5:00 | 4:00 |
| 20:00 | 6:00 | 5:00 |
| 21:00 | 7:00 | 6:00 |
| 22:00 | 8:00 | 7:00 |
| 23:00 | 9:00 | 8:00 |
Japan Standard Time
Offset: JST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Japan
Principal Cities: The largest city in the JST timezone is Tokyo from Japan with population about 8.337 million people. Other major cities in the area are Yokohama, Osaka shi, Nagoya shi, Sapporo
Daylight Saving: Japan Standard Time (JST) is not adjusted for daylight saving therefore JST 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, Japan Standard Time remains the same
JST 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 JST
- I - short form of 'India'
- Asia/Tokyo
- Japan
- 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 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 timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Eastern Daylight Time (EDT).
Start: Eastern Standard Time (EST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
End: Eastern Standard Time (EST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time starts annually the on second Sunday of March.
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
Central Time
Central Time (PT) is a general term used to describe the areas that observe either the Central Standard Time (CST) or Central Daylight Time (CDT) in the United States and Canada. CT is not static but switches between CDT and CST.
Territories observing the time zone are primarily in North and Central America. It runs through several Mexican and U.S. states, as well as several Canadian provinces and Central American countries.
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
Central Time (PT) is a general term used to describe the areas that observe either the Central Standard Time (CST) or Central Daylight Time (CDT) in the United States and Canada. CT is not static but switches between CDT and CST.
Territories observing the time zone are primarily in North and Central America. It runs through several Mexican and U.S. states, as well as several Canadian provinces and Central American countries.
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
CT 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 CT
- S - short form of 'Sierra'
- Central Time - UTC -6
- Chuuk Time - UTC +10
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone