IST to BRT Time Converter

Convert India Standard Time (IST) to Brasília Time (BRT). Both time zones are shown live below; current offset between them is 8h 30m behind.

Mumbai · India Standard Time
03:14:47
Tuesday, May 12, 2026
GMT+5:30 · UTC+05:30
São Paulo · Brasília Time
18:44:47
Monday, May 11, 2026
GMT-3 · UTC-03:00

Convert a specific time

From: IST (Mumbai)
To: BRT (São Paulo)
--:--

Daylight Saving status right now

IST (India Standard Time)
Observes DST
No
BRT (Brasília Time)
Observes DST
No

When can IST and BRT meet?

00
01
02
03
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06
07
08
09
10
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IST
BRT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Mumbai (IST). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 17:00–18:00 IST (08:30–09:30 BRT).

Hour-by-hour IST to BRT conversion table

IST time (Mumbai)BRT time (São Paulo)Status
00:00 Tue15:30 MonBRT working
01:00 Tue16:30 MonBRT working
02:00 Tue17:30 MonOff-hours both sides
03:00 Tue18:30 MonOff-hours both sides
04:00 Tue19:30 MonOff-hours both sides
05:00 Tue20:30 MonOff-hours both sides
06:00 Tue21:30 MonOff-hours both sides
07:00 Tue22:30 MonOff-hours both sides
08:00 Tue23:30 MonOff-hours both sides
09:00 Tue00:30 TueIST working
10:00 Tue01:30 TueIST working
11:00 Tue02:30 TueIST working
12:00 Tue03:30 TueIST working
13:00 Tue04:30 TueIST working
14:00 Tue05:30 TueIST working
15:00 Tue06:30 TueIST working
16:00 Tue07:30 TueIST working
17:00 Tue08:30 TueOff-hours both sides
18:00 Tue09:30 TueBRT working
19:00 Tue10:30 TueBRT working
20:00 Tue11:30 TueBRT working
21:00 Tue12:30 TueBRT working
22:00 Tue13:30 TueBRT working
23:00 Tue14:30 TueBRT working

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

India Standard Time (IST)
IANA identifier
Asia/Kolkata
Current UTC offset
UTC+05:30
Current abbreviation
GMT+5:30
Major cities in this zone
MumbaiNew DelhiBangaloreChennaiKolkata
Brasília Time (BRT)
IANA identifier
America/Sao_Paulo
Current UTC offset
UTC-03:00
Current abbreviation
GMT-3
Major cities in this zone
São PauloRio de JaneiroBrasília

Sun today in Mumbai and São Paulo

Mumbai
Sunrise
06:06
Sunset
19:05
Solar noon
12:36
Daylight
12h 59m
São Paulo
Sunrise
06:32
Sunset
17:35
Solar noon
12:04
Daylight
11h 3m

Related converters

BRT to IST (reverse)IST to ESTIST to PSTIST to GMTIST to UTCIST to CETEST to BRTPST to BRTGMT to BRTUTC to BRTCET to BRT
Looking for local time? See time in Mumbai or time in São Paulo.

Frequently asked questions

What is the time difference between IST and BRT right now?+
BRT (Brasília Time) is currently 8h 30m behind IST (India Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does IST or BRT observe daylight saving time?+
IST: does not observe daylight saving time. BRT: does not observe daylight saving time.
When is the best time to schedule a meeting between IST and BRT?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 17:00–18:00 IST (08:30–09:30 BRT).
What time is it in São Paulo when it is 12:00 noon in Mumbai?+
When it is 12:00 Tue in Mumbai (IST), it is 03:30 Tue in São Paulo (BRT).
Which IANA time zone identifiers are used for IST and BRT?+
IST maps to "Asia/Kolkata" in the IANA database. BRT maps to "America/Sao_Paulo". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Mumbai ahead of or behind São Paulo?+
Whether Mumbai (IST) is ahead of or behind São Paulo (BRT) depends on the current UTC offsets. Right now BRT is 8h 30m behind IST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for IST and BRT?+
IST is UTC+05:30 (GMT+5:30) and BRT is UTC-03:00 (GMT-3). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both IST and BRT?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between IST and BRT is 17:00–18:00 IST.