BRT
Brasília time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IST
India Standard Time
GMT +5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

BRT is 8 hours and 30 minutes behind IST. BRT uses GMT -3, and IST uses GMT +5:30 for this comparison.

For example, 9:00 am BRT is 5:30 pm IST. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 8:30am-9:30am BRT, which is 5pm-6pm IST.

Compare BRT time with IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Brasília time is 8 hours and 30 minutes behind India Standard Time
9:00 am09:00 in BRT is 5:30 pm17:30 in IST

BRT to IST call time
Best time for a conference call or a meeting is between 8:30am-9:30am in BRT which corresponds to 5pm-6pm in IST

9:00 am09:00 Brasília time (BRT). Offset UTC -3:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours

9:00 am09:00 BRT / 5:30 pm17:30 IST

BRTIST
12am (midnight)8:30 am
1am9:30 am
2am10:30 am
3am11:30 am
4am12:30 pm
5am1:30 pm
6am2:30 pm
7am3:30 pm
8am4:30 pm
9am5:30 pm
10am6:30 pm
11am7:30 pm
12pm (noon)8:30 pm
1pm9:30 pm
2pm10:30 pm
3pm11:30 pm
4pm12:30 am
5pm1:30 am
6pm2:30 am
7pm3:30 am
8pm4:30 am
9pm5:30 am
10pm6:30 am
11pm7:30 am
00:0008:30
01:0009:30
02:0010:30
03:0011:30
04:0012:30
05:0013:30
06:0014:30
07:0015:30
08:0016:30
09:0017:30
10:0018:30
11:0019:30
12:0020:30
13:0021:30
14:0022:30
15:0023:30
16:0000:30
17:0001:30
18:0002:30
19:0003:30
20:0004:30
21:0005:30
22:0006:30
23:0007:30

Brasília time

Offset: BRT is 3 hours behind Greenwich Mean Time (GMT) and is used in South America

Countries using this time zone: Brazil

Principal Cities: The largest city in the BRT time zone is Fortaleza in Brazil, with about 2.4 million people. Other major cities in this time zone include Sao Luis, Natal, Teresina, Joao Pessoa.

Daylight Saving: Clocks in Brasília time (BRT) do not change for daylight saving time, so BRT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

BRT Time Zone Geo Map
BRT timezone map

BRT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -03 - basic short
  • -0300 - basic
  • -03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Papa - Military abbreviation for BRT
  • P - short form of 'Papa'
Time zones with the GMT -3 offset:
  • ADT - Atlantic Daylight Time
  • PMT - Pierre & Miquelon Standard Time
  • PMST - Pierre & Miquelon Standard Time
  • AMST - Amazon Summer Time
  • ART - Argentina Time
  • BRT - Brasília time
  • CLST - Chile Summer Time
  • FKST - Falkland Islands Summer Time
  • GFT - French Guiana Time
  • P - Papa Time Zone
  • PYST - Paraguay Summer Time
  • SRT - Suriname Time
  • UYT - Uruguay Time

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: India

Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Kolkata, Chennai.

Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

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 an offset of five hours and thirty minutes 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