BRT to IST Converter
Convert time between Brasilia Time (BRT) and India Standard Time (IST)
Brasilia Time (BRT)
India Standard Time (IST)
Time Difference
India Standard Time (IST) is 0 hours ahead of Brasilia Time (BRT)
Select Date
Select Time
Quick Reference
| BRT | IST |
|---|---|
| 23:00 | 07:30 |
| 01:00 | 09:30 |
| 03:00 | 11:30 |
| 05:00 | 13:30 |
| 07:00 | 15:30 |
| 09:00 | 17:30 |
| 11:00 | 19:30 |
| 13:00 | 21:30 |
| 15:00 | 23:30 |
| 17:00 | 01:30 |
| 19:00 | 03:30 |
| 21:00 | 05:30 |
Top 10 Most Common Time Zones
| Abbreviation | Full Name | UTC Offset | Typical Use |
|---|---|---|---|
| UTC | Coordinated Universal Time | UTC ±0 | Global reference standard (servers, logs, APIs) |
| EST / EDT | Eastern (US) Time | UTC −5 / −4 | New York, Toronto — North American business hub |
| CST / CDT | Central (US) Time | UTC −6 / −5 | Chicago, Dallas — US central business region |
| PST / PDT | Pacific (US) Time | UTC −8 / −7 | San Francisco, Los Angeles — tech industry standard |
| GMT / BST | Greenwich Mean / British Summer Time | UTC 0 / +1 | UK, used globally as a reference with UTC |
| CET / CEST | Central European (Summer) Time | UTC +1 / +2 | Paris, Berlin, Amsterdam — EU business core |
| IST | India Standard Time | UTC +5:30 | India — major IT & outsourcing region |
| CST | China Standard Time | UTC +8 | Beijing, Shanghai — East Asia business hub |
| JST | Japan Standard Time | UTC +9 | Tokyo — finance & tech hub |
| AEST / AEDT | Australian Eastern (Daylight) Time | UTC +10 / +11 | Sydney, Melbourne — APAC regional business |
Why Time Zone Abbreviations Are Ambiguous
Unlike standardized identifiers (like America/New_York or Europe/London from the IANA tz database), abbreviations such as "CST" or "IST" are not globally unique. They can refer to different time zones depending on context — country, region, or even time of year (due to daylight saving time).
Common Ambiguous Time Zone Abbreviations
| Abbrev. | Common Meaning(s) | UTC Offset | Region(s) |
|---|---|---|---|
| CST | Central Standard Time / China Standard Time / Cuba Standard Time | UTC−6 / UTC+8 / UTC−5 | North America, China, Cuba |
| IST | Indian Standard Time / Irish Standard Time / Israel Standard Time | UTC+5:30 / UTC+1 / UTC+2 | India, Ireland, Israel |
| AST | Atlantic Standard Time / Arabia Standard Time | UTC−4 / UTC+3 | Caribbean, Canada, Middle East |
| PST | Pacific Standard Time / Philippine Standard Time | UTC−8 / UTC+8 | North America, Philippines |
| EST | Eastern Standard Time (North America / Australia) | UTC−5 / UTC+10 | North America, Australia |
✅ Best Practice
To avoid ambiguity, always:
- Use IANA tz identifiers — e.g.,
America/New_Yorkinstead of "EST" - Specify UTC offset explicitly — e.g.,
UTC−5when abbreviations must be used - Include the full timezone name — e.g., "Eastern Standard Time (EST)" with UTC offset
About BRT to IST Time Conversion
Converting between Brasilia Time (BRT) and India Standard Time (IST) connects Brazil with India and Sri Lanka. BRT is UTC-3 and IST is UTC+5:30, putting Mumbai, Delhi, Bengaluru, Chennai and Kolkata 8 hours and 30 minutes ahead of Sao Paulo, Rio de Janeiro and Brasilia.
This converter uses the IANA timezone database for accurate calculations. Neither India nor Brazil observes daylight saving time, so the 8.5-hour gap is constant year-round. India uses a single standard time across the entire country.
Common Use Cases for BRT to IST Conversion
Business & Work
- Coordinating IT services and software development calls between Brazilian firms and Indian outsourcing partners
- Scheduling pharmaceutical and biotech meetings between Sao Paulo and Mumbai
- Aligning agricultural and commodity handovers between Brazil and India
Personal & Travel
- Planning travel between Brazil and India
- Coordinating with family or friends in Mumbai, Delhi, Bengaluru or Chennai
- Scheduling video calls during the long Indian evenings
Time Zone Information
Brasilia Time (BRT)
- UTC Offset: UTC-3
- IANA Timezone: America/Sao_Paulo
- Daylight Saving: Not observed (DST abolished in Brazil in 2019)
- Major Cities: Brasilia, Sao Paulo, Rio de Janeiro, Belo Horizonte, Salvador
- Coverage: Most of Brazil including the southeast, south, northeast and central-west regions
India Standard Time (IST)
- UTC Offset: UTC+5:30
- IANA Timezone: Asia/Kolkata
- Daylight Saving: Not observed
- Major Cities: Mumbai, Delhi, Bengaluru, Chennai, Kolkata, Hyderabad
- Coverage: Entire Republic of India and Sri Lanka
Quick Reference: BRT to IST
Remember: IST is 8 hours and 30 minutes ahead of BRT year-round
Frequently Asked Questions
What is the time difference between BRT and IST?
Brasilia Time (BRT) is UTC-3, and India Standard Time (IST) is UTC+5:30. IST is 8 hours and 30 minutes ahead of BRT. When it is 12:00 PM in Brasilia, it is 8:30 PM in Mumbai.
Does the BRT-IST offset change throughout the year?
No. India does not observe daylight saving and Brazil ended DST in 2019, so the 8.5-hour gap between BRT and IST is constant year-round.
Is IST the same as Israel Standard Time?
No. On this page, IST refers to India Standard Time (UTC+5:30). Israel Standard Time (also abbreviated IST) is UTC+2 and is unrelated. Always confirm the country before assuming the offset.
What are the best times for BRT-IST business calls?
There is morning overlap. 6:00 to 9:00 AM BRT corresponds to 2:30 to 5:30 PM IST — early Brazilian morning, mid-afternoon in India. Avoid scheduling after 11:00 AM BRT (7:30 PM IST) to keep within Indian working hours.
Which countries/regions use IST timezone?
IST covers the entire Republic of India and Sri Lanka. India uses a single time zone across the country despite spanning roughly 28 degrees of longitude. Major cities include Mumbai, Delhi, Bengaluru, Chennai, Kolkata and Hyderabad.
Which countries/regions use BRT timezone?
BRT is observed across most of Brazil, including Brasilia, Sao Paulo, Rio de Janeiro, Belo Horizonte and Salvador. Some western states use AMT (UTC-4) instead.
Pro Tips
- • IST is 8:30 ahead of BRT — add 8 hours and 30 minutes to a Brasilia time to get the Mumbai time.
- • Best meeting window: 6:00 to 9:00 AM BRT = 2:30 to 5:30 PM IST — early start in Brazil, afternoon in India.
- • Neither side observes DST, so the 8.5-hour gap is stable year-round — no need to update recurring meetings seasonally.
- • India uses a single standard time across the entire country — no internal time zones to manage.
- • Use IANA identifiers (America/Sao_Paulo and Asia/Kolkata) in calendars to avoid confusion with Israel Standard Time.
- • For late-day overlap: 11:00 AM BRT (7:30 PM IST) is the latest comfortable slot for Indian colleagues.