IST
India Standard Time
GMT +5:30
FST
Fiji Standard Time
GMT +12

Time Difference

India Standard Time is 6 hours and 30 minutes behind Fiji Standard Time
11:00 pm23:00 in IST is 5:30 am05:30 in FST

IST to FST call time
Best time for a conference call or a meeting is between 8am-11:30am in IST which corresponds to 2:30pm-6pm in FST

11:00 pm23:00 India Standard Time (IST). Offset UTC +5:30 hours
5:30 am05:30 Fiji Standard Time (FST). Offset UTC +12:00 hours

11:00 pm23:00 IST / 5:30 am05:30 FST

IST FST
12am (midnight) 6:30 am
1am 7:30 am
2am 8:30 am
3am 9:30 am
4am 10:30 am
5am 11:30 am
6am 12:30 pm
7am 1:30 pm
8am 2:30 pm
9am 3:30 pm
10am 4:30 pm
11am 5:30 pm
12pm (noon) 6:30 pm
1pm 7:30 pm
2pm 8:30 pm
3pm 9:30 pm
4pm 10:30 pm
5pm 11:30 pm
6pm 12:30 am
7pm 1:30 am
8pm 2:30 am
9pm 3:30 am
10pm 4:30 am
11pm 5:30 am
0:00 6:30
1:00 7:30
2:00 8:30
3:00 9:30
4:00 10:30
5:00 11:30
6:00 12:30
7:00 13:30
8:00 14:30
9:00 15:30
10:00 16:30
11:00 17:30
12:00 18:30
13:00 19:30
14:00 20:30
15:00 21:30
16:00 22:30
17:00 23:30
18:00 0:30
19:00 1:30
20:00 2:30
21:00 3:30
22:00 4:30
23:00 5:30

India Standard Time

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

Countries: It is used in following countries: India

Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai

Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST 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, India Standard Time remains the same

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 five hour and thirty minutes time differences 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

Fiji Standard Time

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

FST 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 twelve hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Mike - Military abbreviation for FST
  • 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
  • MAGT - Magadan 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