IST
India Standard Time
GMT +5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
NRT
Nauru Time
GMT +12
tomorrow
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

IST is 6 hours and 30 minutes behind NRT. IST uses GMT +5:30, and NRT uses GMT +12 for this comparison.

For example, 5:30 pm IST is 12:00 am NRT. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9am-10:30am IST, which is 3:30pm-5pm NRT.

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

Time Difference

India Standard Time is 6 hours and 30 minutes behind Nauru Time
5:30 pm17:30 in IST is 12:00 am00:00 in NRT

IST to NRT call time
Best time for a conference call or a meeting is between 9am-10:30am in IST which corresponds to 3:30pm-5pm in NRT

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
12:00 am00:00 Nauru Time (NRT). Offset UTC +12:00 hours

5:30 pm17:30 IST / 12:00 am00:00 NRT

ISTNRT
12am (midnight)6:30 am
1am7:30 am
2am8:30 am
3am9:30 am
4am10:30 am
5am11:30 am
6am12:30 pm
7am1:30 pm
8am2:30 pm
9am3:30 pm
10am4:30 pm
11am5:30 pm
12pm (noon)6:30 pm
1pm7:30 pm
2pm8:30 pm
3pm9:30 pm
4pm10:30 pm
5pm11:30 pm
6pm12:30 am
7pm1:30 am
8pm2:30 am
9pm3:30 am
10pm4:30 am
11pm5:30 am
00:0006:30
01:0007:30
02:0008:30
03:0009:30
04:0010:30
05:0011:30
06:0012:30
07:0013:30
08:0014:30
09:0015:30
10:0016:30
11:0017:30
12:0018:30
13:0019:30
14:0020:30
15:0021:30
16:0022:30
17:0023:30
18:0000:30
19:0001:30
20:0002:30
21:0003:30
22:0004:30
23:0005:30

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

Nauru Time

Offset: NRT is 12 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: Nauru

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

NRT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +12 - basic short
  • +1200 - basic
  • +12:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1200 - sign character (+) followed by a four digit time providing hours (12) and minutes (00) of the offset. Indicates an offset of twelve hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Mike - Military abbreviation for NRT
  • M - short form of 'Mike'
Time zones with the GMT +12 offset:
  • ANAST - Anadyr Summer Time
  • ANAT - Anadyr Time
  • FJT - Fiji Time
  • GILT - Gilbert Island Time
  • M - Mike Time Zone
  • MAGST - Magadan Summer Time
  • MHT - Marshall Islands Time
  • NRT - Nauru Time
  • NZST - New Zealand Standard Time
  • PETST - Kamchatka Summer Time
  • TVT - Tuvalu Time
  • WFT - Wallis and Futuna Time