IST to BRT: IST is 8 hours 30 minutes ahead of BRT
India Standard Time is 8 hours 30 minutes ahead of Brasilia Time, on every day of the year. It is 6:30 am IST in India and 10:00 pm BRT in Brasilia, which is already the previous day there.
Convert a specific time from IST to BRT
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between IST and BRT?
Brasilia Time is 8 hours 30 minutes behind India Standard Time. To go from IST to BRT you subtract 8 hours 30 minutes. That gap holds on all 365 days of 2026: neither zone moves its clocks.
IST to BRT conversion table
Every hour of Friday, September 25, 2026 in India, with the matching reading in Brasilia. 9 of the 24 hours land on a different calendar date in Brasilia, which is the part people get wrong when they schedule across this pair.
| IST | IST 24h | BRT | BRT 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 3:30 pm | 15:30 | the previous day |
| 1:00 am | 01:00 | 4:30 pm | 16:30 | the previous day |
| 2:00 am | 02:00 | 5:30 pm | 17:30 | the previous day |
| 3:00 am | 03:00 | 6:30 pm | 18:30 | the previous day |
| 4:00 am | 04:00 | 7:30 pm | 19:30 | the previous day |
| 5:00 am | 05:00 | 8:30 pm | 20:30 | the previous day |
| 6:00 am | 06:00 | 9:30 pm | 21:30 | the previous day |
| 7:00 am | 07:00 | 10:30 pm | 22:30 | the previous day |
| 8:00 am | 08:00 | 11:30 pm | 23:30 | the previous day |
| 9:00 am | 09:00 | 12:30 am | 00:30 | same day |
| 10:00 am | 10:00 | 1:30 am | 01:30 | same day |
| 11:00 am | 11:00 | 2:30 am | 02:30 | same day |
| 12:00 pm | 12:00 | 3:30 am | 03:30 | same day |
| 1:00 pm | 13:00 | 4:30 am | 04:30 | same day |
| 2:00 pm | 14:00 | 5:30 am | 05:30 | same day |
| 3:00 pm | 15:00 | 6:30 am | 06:30 | same day |
| 4:00 pm | 16:00 | 7:30 am | 07:30 | same day |
| 5:00 pm | 17:00 | 8:30 am | 08:30 | same day |
| 6:00 pm | 18:00 | 9:30 am | 09:30 | same day |
| 7:00 pm | 19:00 | 10:30 am | 10:30 | same day |
| 8:00 pm | 20:00 | 11:30 am | 11:30 | same day |
| 9:00 pm | 21:00 | 12:30 pm | 12:30 | same day |
| 10:00 pm | 22:00 | 1:30 pm | 13:30 | same day |
| 11:00 pm | 23:00 | 2:30 pm | 14:30 | same day |
What are the best hours to schedule a call between IST and BRT?
No hour of the standard 9:00 am to 5:00 pm working day falls inside working hours on both sides. India and Brasilia are 8 hours 30 minutes apart, which is too far for an overlap, so somebody has to take a call outside their own working day. The least painful options are below, ranked by how close both sides sit to the middle of the afternoon.
| IST | BRT | Working hours | Note |
|---|---|---|---|
| 4:00 pm | 7:30 am | IST only | afternoon in India, early morning in Brasilia |
| 5:00 pm | 8:30 am | neither side | evening in India, mid morning in Brasilia |
| 6:00 pm | 9:30 am | BRT only | evening in India, mid morning in Brasilia |
Does daylight saving change IST to BRT?
India Standard Time does not move its clocks at all, so its UTC+5:30 offset holds every day of the year.
Brasilia Time does not move its clocks at all, so its UTC-3 offset holds every day of the year.
Is IST ahead of or behind BRT?
IST is ahead of BRT by 8 hours 30 minutes: when it is 12:00 pm in India, it is 3:30 am in Brasilia. Neither India Standard Time nor Brasilia Time observes daylight saving, so the abbreviations never change and the gap between them is fixed.
India Standard Time covers the whole of India on a single half hour offset. Brasilia Time covers Sao Paulo and Rio de Janeiro, fixed since Brazil dropped summer time in 2019. The identifiers behind them are Asia/Kolkata and America/Sao_Paulo, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is IST in BRT?
- IST is 8 hours 30 minutes ahead of BRT. 9:00 am IST is 12:30 am BRT.
- How many hours ahead is BRT of IST?
- BRT is 8 hours 30 minutes behind IST.
- What time is it in Brasilia right now?
- 10:00 pm BRT on Thursday, September 24, 2026.
- When can India and Brasilia meet during working hours?
- There is no shared working hour. The closest fit is 4:00 pm IST, which is 7:30 am BRT.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so IST and BRT are the abbreviations genuinely in force today rather than a fixed assumption.
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