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

Time Difference

is 6 hours and 30 minutes ahead of India Standard Time
1:00 am01:00 in +12 is 6:30 pm18:30 in IST

+12 to IST call time
Best time for a conference call or a meeting is between 2:30pm-6pm in +12 which corresponds to 8am-11:30am in IST

1:00 am01:00 (+12). Offset UTC +12:00 hours
6:30 pm18:30 India Standard Time (IST). Offset UTC +5:30 hours

1:00 am01:00 +12 / 6:30 pm18:30 IST

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

+12

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

Countries: It is used in following countries: Fiji, Kiribati, Marshall Islands, Norfolk Island, Nauru, Russia, Tuvalu, US minor outlying islands, Wallis & Futuna

Principal Cities: The largest city in the +12 timezone is Petropavlovsk Kamchatsky from Russia with population about 187,282 people. Other major cities in the area are Suva, Lautoka, Nadi, Yelizovo

Daylight Saving: (+12) is not adjusted for daylight saving therefore +12 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, remains the same

+12 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 +12
  • M - short form of 'Mike'
IANA/Olson: Reflects +12 time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Anadyr
  • Asia/Kamchatka
  • Etc/GMT-12
  • Kwajalein
  • Pacific/Fiji
  • Pacific/Funafuti
  • Pacific/Kwajalein
  • Pacific/Majuro
  • Pacific/Nauru
  • Pacific/Norfolk
  • Pacific/Tarawa
  • Pacific/Wake
  • Pacific/Wallis
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
  • +12 -

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