Canada Atlantic Time to Brasília Time
Convert times between Canada Atlantic Time (AST, UTC-4:00) and Brasília Time (BRT, UTC-3:00). Brasília Time is 1 hour ahead of Canada Atlantic Time in standard time. During daylight saving time this difference changes to 0 hours.
UTC-4:00 / -3:00→UTC-3:00
Live timezone converterUTC Offset Reference
| Timezone | Abbreviation | Standard offset | DST offset | Country |
|---|---|---|---|---|
| Canada Atlantic Time | AST / ADT | UTC-4:00 | UTC-3:00 | Canada |
| Brasília Time | BRT | UTC-3:00 | — | Brazil |
* DST offset applies during summer months. Exact transition dates vary by year.
Standard Time Conversion (AST → BRT)
| Canada Atlantic Time | Brasília Time |
|---|---|
| 12:00 AM AST | 1:00 AM BRT |
| 6:00 AM AST | 7:00 AM BRT |
| 9:00 AM AST | 10:00 AM BRT |
| 12:00 PM AST | 1:00 PM BRT |
| 3:00 PM AST | 4:00 PM BRT |
| 6:00 PM AST | 7:00 PM BRT |
| 9:00 PM AST | 10:00 PM BRT |
Summer (DST) Conversion (ADT → BRT)
| Canada Atlantic Time (summer) | Brasília Time (summer) |
|---|---|
| 12:00 AM ADT | 12:00 AM BRT |
| 6:00 AM ADT | 6:00 AM BRT |
| 9:00 AM ADT | 9:00 AM BRT |
| 12:00 PM ADT | 12:00 PM BRT |
| 3:00 PM ADT | 3:00 PM BRT |
| 6:00 PM ADT | 6:00 PM BRT |
| 9:00 PM ADT | 9:00 PM BRT |
Daylight Saving Time (DST) Notes
- Canada Atlantic Time observes DST. Clocks advance 1 hour to ADT (UTC-3:00) roughly from month 3 to 11.
- The offset difference shifts between 1h (standard) and 0h (DST season). Always verify the current offset using the live converter below.
Frequently Asked Questions
How do I convert AST to BRT?
Add 1 hours to the AST time to get BRT. For example, 9:00 AM AST = 10:00 AM BRT.
What is the current UTC offset for Canada Atlantic Time?
Canada Atlantic Time is UTC-4:00 during standard time (AST) and UTC-3:00 during summer daylight saving time (ADT).
Is Brasília Time ahead or behind Canada Atlantic Time?
Brasília Time is 1 hour ahead of Canada Atlantic Time in standard time.
When is a good time to schedule a meeting between AST and BRT?
A good overlap window is around 9:00 AM AST / 10:00 AM BRT, which falls within business hours for both timezones.
Related Timezone Conversions
Canada Atlantic Time → US Eastern TimeAST / ESTCanada Atlantic Time → US Central TimeAST / CSTCanada Atlantic Time → US Mountain TimeAST / MSTCanada Atlantic Time → US Pacific TimeAST / PSTCanada Atlantic Time → US Alaska TimeAST / AKSTCanada Atlantic Time → Hawaii TimeAST / HSTCanada Atlantic Time → Argentina TimeAST / ARTCanada Atlantic Time → Colombia TimeAST / COT
Need the exact current time?
Use the live ToolsHub timezone converter to see current times, DST status, and schedule across time zones.