IST
India Standard Time
GMT +5:30
HKT
Hong Kong Time
GMT +8

Time Difference

India Standard Time is 2 hours and 30 minutes behind of Hong Kong Time
So 10:30 pm22:30 in IST is 1:00 am01:00 in HKT

10:30 pm22:30 India Standard Time (IST). Offset UTC +5:30 hours
1:00 am01:00 Hong Kong Time (HKT). Offset UTC +8:00 hours

10:30 pm22:30 IST / 1:00 am01:00 HKT

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

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


Hong Kong Time

Offset: HKT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: Hong Kong

Principal Cities: The largest city in the HKT timezone is Hong Kong from Hong Kong with population about 7.013 million people. Other major cities in the area are Kowloon, Tsuen Wan, Yuen Long Kau Hui, Sha Tin

Daylight Saving: Hong Kong Time (HKT) is not adjusted for daylight saving therefore HKT 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, Hong Kong Time remains the same

HKT Time Zone Geo Map
HKT timezone map
HKT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +08 - basic short
  • +0800 - basic
  • +08:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight 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
  • Hotel - Military abbreviation for HKT
  • H - short form of 'Hotel'

IANA/Olson: Reflects HKT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Hong_Kong
  • Hongkong

Time zones with the GMT +8 offset:

  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time
  • +08 -