IST
India Standard Time
GMT +5:30
YST
Yukon Standard Time
GMT -7

Time Difference

India Standard Time is 12 hours and 30 minutes ahead of Yukon Standard Time
9:30 pm21:30 in IST is 9:00 am09:00 in YST

IST to YST 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 YST

9:30 pm21:30 India Standard Time (IST). Offset UTC +5:30 hours
9:00 am09:00 Yukon Standard Time (YST). Offset UTC -7:00 hours

9:30 pm21:30 IST / 9:00 am09:00 YST

IST YST
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

Yukon Standard Time

Offset: YST is 7 hours behind Greenwich Mean Time (GMT) and is used in North America

French: HNY - Heure Normale du Yukon

YST 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 YST
  • T - short form of 'Tango'
YST Abbreviation: Several time zones share YST abbreviation and it could refer to these time zones
  • Yukon Standard Time - UTC -7
  • Yekaterinburg Standard Time - UTC +5
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone