JST
Japan Standard Time
GMT +9
Thu, Mar 7
12am
3am
6am
9am
12pm
3pm
6pm
9pm
EST
Eastern Standard Time
GMT -5
Thu, Mar 7
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

JST is 14 hours ahead of EST. JST uses GMT +9, and EST uses GMT -5 for this comparison.

For example, 9:00 pm JST is 7:00 am EST. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 7:30am-8:30am JST, which is 5:30pm-6:30pm EST (previous day).

EST is a fixed UTC-5 standard-time offset. For current Eastern Time, compare JST to EDT or JST to ET.

Popular JST to EST conversions

Popular JST to EST time conversions
JSTJST 24-hourESTEST 24-hour
4:00 am04:002:00 pm (previous day)14:00 (previous day)

Compare JST time with EST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Japan Standard Time is 14 hours ahead of Eastern Standard Time
9:00 pm21:00 in JST is 7:00 am07:00 in EST

JST to EST call time
Best time for a conference call or a meeting is between 7:30am-8:30am in JST which corresponds to 5:30pm-6:30pm in EST (previous day)

9:00 pm21:00 Japan Standard Time (JST). Offset UTC +9:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours

9:00 pm21:00 JST / 7:00 am07:00 EST

JSTEST
12am (midnight)10am
1am11am
2am12pm (noon)
3am1pm
4am2pm
5am3pm
6am4pm
7am5pm
8am6pm
9am7pm
10am8pm
11am9pm
12pm (noon)10pm
1pm11pm
2pm12am (midnight)
3pm1am
4pm2am
5pm3am
6pm4am
7pm5am
8pm6am
9pm7am
10pm8am
11pm9am
00:0010:00
01:0011:00
02:0012:00
03:0013:00
04:0014:00
05:0015:00
06:0016:00
07:0017:00
08:0018:00
09:0019:00
10:0020:00
11:0021:00
12:0022:00
13:0023:00
14:0000:00
15:0001:00
16:0002:00
17:0003:00
18:0004:00
19:0005:00
20:0006:00
21:0007:00
22:0008:00
23:0009:00

Japan Standard Time

Offset: JST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Japan

Principal Cities: The largest city in the JST time zone is Tokyo in Japan, with about 8.337 million people. Other major cities in this time zone include Yokohama, Osaka shi, Nagoya shi, Sapporo.

Daylight Saving: Clocks in Japan Standard Time (JST) do not change for daylight saving time, so JST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

JST Time Zone Geo Map
JST timezone map

JST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for JST
  • I - short form of 'India'
IANA/Olson: Reflects JST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Tokyo
  • Japan
Time zones with the GMT +9 offset:
  • 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 using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States

Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.175 million people. Other major cities in this time zone include Toronto, Montreal, Brooklyn, Borough of Queens.

French: HNE - Heure Normale de l'Est

Spanish: ET - Tiempo del Este, ET - Zona Sureste

EST Time Zone Geo Map
EST timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).

Daylight saving time clock moves back for one hour from 2am to 1amStart: Eastern Standard Time (EST) started on Sunday, November 5, 2023 at 2:00 am local time and clocks were set one hour back to Sunday, November 5, 2023, 1:00 am. Standard time starts annually on the first Sunday of November.

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Eastern Standard Time (EST) ends on Sunday, March 10, 2024 at 2:00 am local time and clocks are set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually on the second Sunday of March.

EST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for EST
  • R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
Time zones with the GMT -5 offset:
  • 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