IST
India Standard Time
GMT +5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Japan
JST
12am
3am
6am
9am
12pm
3pm
6pm
9pm

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

Time Difference

India Standard Time is 3 hours and 30 minutes behind JST (Japan Standard Time)
5:30 pm17:30 in IST is 9:00 pm21:00 in Date, Japan

IST to Date call time
Best time for a conference call or a meeting is between 9am-1:30pm in IST which corresponds to 12:30pm-5pm in Date

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
9:00 pm21:00 JST (Japan Standard Time) (Date, Japan). Offset UTC +9:00 hours

5:30 pm17:30 IST / 9:00 pm21:00 Date, Japan

ISTDate, Japan
12am (midnight)3:30 am
1am4:30 am
2am5:30 am
3am6:30 am
4am7:30 am
5am8:30 am
6am9:30 am
7am10:30 am
8am11:30 am
9am12:30 pm
10am1:30 pm
11am2:30 pm
12pm (noon)3:30 pm
1pm4:30 pm
2pm5:30 pm
3pm6:30 pm
4pm7:30 pm
5pm8:30 pm
6pm9:30 pm
7pm10:30 pm
8pm11:30 pm
9pm12:30 am
10pm1:30 am
11pm2:30 am
00:0003:30
01:0004:30
02:0005:30
03:0006:30
04:0007:30
05:0008:30
06:0009:30
07:0010:30
08:0011:30
09:0012:30
10:0013:30
11:0014:30
12:0015:30
13:0016:30
14:0017:30
15:0018:30
16:0019:30
17:0020:30
18:0021:30
19:0022:30
20:0023:30
21:0000:30
22:0001:30
23:0002:30

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: India

Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Kolkata, Chennai.

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

IST Time Zone Geo Map
IST timezone map

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0530 - basic
  • +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Calcutta
  • Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2

Date Information

Time Zone

Abbreviation / Name
JST - Japan Standard Time
UTC / GMT Offset
+9:00 hours during Japan Standard Time, currently in use.

Date Facts

Country
Japan
Alternative Names
Date, Nishi-mombetsu, yi da, yi da shi, 伊達, 伊達市
Population
35,301
Currency
Yen (JPY)
Geographic Coordinates
42° 28' N Latitude / 140° 52' E Longitude
International Dialing Code
+81