BRT to AWST Converter & Meeting Planner
Quick answer: 9:00 AM BRT = 8:00 PM AWST (fixed -03:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Brasília Time (BRT) and Australian Western Standard Time (AWST)? You need to account for the standard time difference. Australian Western Standard Time is normally 11 hours ahead of Brasília Time. Whether you are coordinating between teams in São Paulo and Rio de Janeiro and Perth and Bunbury, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM BRT = 11:00 AM AWST. The full 24-hour BRT to AWST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM BRT = 2:00 AM AWST (+1 day).
| BRT Time | AWST Time |
|---|---|
| 12:00 AM (00:00) | 11:00 AM (11:00) |
| 1:00 AM (01:00) | 12:00 PM (12:00) |
| 2:00 AM (02:00) | 1:00 PM (13:00) |
| 3:00 AM (03:00) | 2:00 PM (14:00) |
| 4:00 AM (04:00) | 3:00 PM (15:00) |
| 5:00 AM (05:00) | 4:00 PM (16:00) |
| 6:00 AM (06:00) | 5:00 PM (17:00) |
| 7:00 AM (07:00) | 6:00 PM (18:00) |
| 8:00 AM (08:00) | 7:00 PM (19:00) |
| 9:00 AM (09:00) | 8:00 PM (20:00) |
| 10:00 AM (10:00) | 9:00 PM (21:00) |
| 11:00 AM (11:00) | 10:00 PM (22:00) |
| 12:00 PM (12:00) | 11:00 PM (23:00) |
| 1:00 PM (13:00) | 12:00 AM (00:00)+1 day |
| 2:00 PM (14:00) | 1:00 AM (01:00)+1 day |
| 3:00 PM (15:00) | 2:00 AM (02:00)+1 day |
| 4:00 PM (16:00) | 3:00 AM (03:00)+1 day |
| 5:00 PM (17:00) | 4:00 AM (04:00)+1 day |
| 6:00 PM (18:00) | 5:00 AM (05:00)+1 day |
| 7:00 PM (19:00) | 6:00 AM (06:00)+1 day |
| 8:00 PM (20:00) | 7:00 AM (07:00)+1 day |
| 9:00 PM (21:00) | 8:00 AM (08:00)+1 day |
| 10:00 PM (22:00) | 9:00 AM (09:00)+1 day |
| 11:00 PM (23:00) | 10:00 AM (10:00)+1 day |
Best time to call Perth from São Paulo
For most work calls, compare the normal business day in São Paulo (BRT) with the business day in Perth (AWST). BRT commonly covers South America, while AWST is mainly associated with Oceania, Australia.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
⚠️ There is no clean same-day business-hours overlap on 2026-07-05. A practical compromise is around 9:30 PM BRT, which reaches 8:30 AM AWST near the start of their workday.
- DST Safety: Neither BRT nor AWST uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- B3 (Brasil Bolsa Balcão): 10:00-17:00 local time in São Paulo.
- Australian Securities Exchange (ASX) - Local Perth Hours: 08:00-14:00 local time in Perth.
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Frequently Asked Questions
What is the time difference between BRT and AWST?
During standard time, Australian Western Standard Time is 11 hours ahead of Brasília Time.
Does Brazil observe Daylight Saving Time?
Brazil officially abolished Daylight Saving Time by presidential decree in April 2019, ending a practice that had been observed in the country's southeastern states since 1985. BRT has remained fixed at UTC-3:00 every day of the year since then, meaning the B3 stock exchange, federal government, and all Brazilian commercial operations run on a permanent, unchanging offset.
Is BRT the same as Argentina Time (ART)?
BRT (Brasília Time) and ART (Argentina Time) share the identical UTC-3:00 offset and neither country observes Daylight Saving Time, making São Paulo and Buenos Aires permanently synchronized on the same clock. Despite the different official designations, a meeting set for 10:00 BRT in São Paulo falls at exactly 10:00 ART in Buenos Aires — a fixed relationship that never shifts seasonally.
Does Perth observe Daylight Saving Time?
Perth and the rest of Western Australia do not observe Daylight Saving Time. Western Australians have voted against DST in multiple state referendums — most recently in 2009 — and AWST remains permanently fixed at UTC+08:00 throughout the year.
Are AWST and China Standard Time the same?
AWST and China Standard Time (CST) share the exact same UTC+08:00 offset, meaning Perth and Beijing operate on an identical clock. The same applies to Singapore Time (SGT) and Malaysia Time (MYT) — all three are perfectly synchronized with AWST, eliminating offset calculations entirely for the resource and commodity trade flows that connect Perth to these major Asian markets.