JST
Japan Standard Time
GMT +9
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Ohio, USA
EST
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Compare JST time with Columbus 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 EST (Eastern Standard Time)
9:00 pm21:00 in JST is 7:00 am07:00 in Columbus, OH, USA

JST to Columbus 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 Columbus (previous day)

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

9:00 pm21:00 JST / 7:00 am07:00 Columbus, OH, USA

JSTColumbus, OH, USA
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

Columbus Information

Time Zone

Abbreviation / Name
EDT - Eastern Daylight Time
EST - Eastern Standard Time
UTC / GMT Offset
-4:00 hours during Eastern Daylight Time, currently in use.
-5:00 hours during Eastern Standard Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 2am to 3amSunday, March 8, 2026 at 2:00 am local time. DST starts annually on the 2nd Sunday of March. Clocks are turned forward 1 hour to Sunday, March 8, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves back for one hour from 2am to 1amSunday, November 1, 2026 at 2:00 am local time. DST ends annually on the 1st Sunday of November. Clocks are turned backward 1 hour to Sunday, November 1, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Columbus Facts

Country
USA
State
Ohio
Alternative Names
CMH, Columbopolis, Columbus, Columbus i Ohio, Franklin, Franklinton, Kalumbus, Kolambus, Kolompous, Kolumbas, Kolumbs, Kolumbu, Kolumbus, Kolumbusa, Kulumbus, ge lun bu, kalabasa, kalambasa, kholambas, klmbws awhayw, kolambas, kolambasa, kolampas, kolleombeoseu, koronbasu, kwlwmbws, qwlwmbws, Κολόμπους, Калумбус, Коламбус, Колумбус, Кълъмбъс, Կոլումբուս, קאלומבוס, קולומבוס, كولومبوس, کلمبوس، اوهایو, کولمبس، اوہائیو, कोलंबस, कोलम्बस, कोलम्बस्, কলম্বাস, ਕਲੰਬਸ, கொலம்பஸ், โคลัมบัส, კოლუმბუსი, コロンバス, 哥伦布, 哥倫布, 콜럼버스
Population
850,106
Currency
Dollar (USD)
Geographic Coordinates
39° 57' N Latitude / 82° 59' W Longitude
International Dialing Code
+1