CHAST
Chatham Island Standard Time
GMT +12:45
IST
India Standard Time
GMT +5:30

Time Difference

Chatham Island Standard Time is 7 hours and 15 minutes ahead of India Standard Time
12:00 am00:00 in CHAST is 4:45 pm16:45 in IST

CHAST to IST call time
Best time for a conference call or a meeting is between 3:15pm-6pm in CHAST which corresponds to 8am-10:45am in IST

12:00 am00:00 Chatham Island Standard Time (CHAST). Offset UTC +12:45 hours
4:45 pm16:45 India Standard Time (IST). Offset UTC +5:30 hours

12:00 am00:00 CHAST / 4:45 pm16:45 IST

CHAST IST
12am (midnight) 4:45 pm
1am 5:45 pm
2am 6:45 pm
3am 7:45 pm
4am 8:45 pm
5am 9:45 pm
6am 10:45 pm
7am 11:45 pm
8am 12:45 am
9am 1:45 am
10am 2:45 am
11am 3:45 am
12pm (noon) 4:45 am
1pm 5:45 am
2pm 6:45 am
3pm 7:45 am
4pm 8:45 am
5pm 9:45 am
6pm 10:45 am
7pm 11:45 am
8pm 12:45 pm
9pm 1:45 pm
10pm 2:45 pm
11pm 3:45 pm
0:00 16:45
1:00 17:45
2:00 18:45
3:00 19:45
4:00 20:45
5:00 21:45
6:00 22:45
7:00 23:45
8:00 0:45
9:00 1:45
10:00 2:45
11:00 3:45
12:00 4:45
13:00 5:45
14:00 6:45
15:00 7:45
16:00 8:45
17:00 9:45
18:00 10:45
19:00 11:45
20:00 12:45
21:00 13:45
22:00 14:45
23:00 15:45

Chatham Island Standard Time

Offset: CHAST is 12 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific

CHAST Time Zone Geo Map
CHAST timezone map

CHAST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1245 - basic
  • +12:45 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1245 - sign character (+) followed by a four digit time providing hours (12) and minutes (45) of the offset. Indicates twelve hour and forty-five minutes time differences to the east of the zero meridian.

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