IST
India Standard Time
GMT +5:30
T
Tango Time Zone
GMT -7

Time Difference

India Standard Time is 12 hours and 30 minutes ahead of Tango Time Zone
11:30 pm23:30 in IST is 11:00 am11:00 in T

IST to T call time
Best time for a conference call or a meeting is between 7pm-9pm in IST which corresponds to 6:30am-8:30am in T

11:30 pm23:30 India Standard Time (IST). Offset UTC +5:30 hours
11:00 am11:00 Tango Time Zone (T). Offset UTC -7:00 hours

11:30 pm23:30 IST / 11:00 am11:00 T

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

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
  • Iran Standard Time - UTC +3:30

Tango Time Zone

Offset: T is 7 hours behind Greenwich Mean Time (GMT) and is used in Military

T representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates seven hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Tango - Military abbreviation for T
  • T - short form of 'Tango'
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone