BRT to AKDT Converter
Convert time between Brasilia Time (BRT) and Alaska Daylight Time (AKDT)
Brasilia Time (BRT)
Alaska Daylight Time (AKDT)
Time Difference
Alaska Daylight Time (AKDT) is 0 hours ahead of Brasilia Time (BRT)
Select Date
Select Time
Quick Reference
| BRT | AKDT |
|---|---|
| 23:00 | 18:00 |
| 01:00 | 20:00 |
| 03:00 | 22:00 |
| 05:00 | 00:00 |
| 07:00 | 02:00 |
| 09:00 | 04:00 |
| 11:00 | 06:00 |
| 13:00 | 08:00 |
| 15:00 | 10:00 |
| 17:00 | 12:00 |
| 19:00 | 14:00 |
| 21:00 | 16:00 |
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 AKDT Time Conversion
Converting between Brasilia Time (BRT) and Alaska Daylight Time (AKDT) connects Brazil with Anchorage, Juneau and Fairbanks during the northern summer. BRT is UTC-3 and AKDT is UTC-8, putting Alaska 5 hours behind Sao Paulo, Rio de Janeiro and Brasilia.
This converter uses the IANA timezone database for accurate calculations and accounts for DST. AKDT is observed from the second Sunday in March to the first Sunday in November. Outside that window, Alaska switches back to AKST (UTC-9), which extends the gap to 6 hours.
Common Use Cases for BRT to AKDT Conversion
Business & Work
- Coordinating fishing and seafood industry calls between Brazil and Alaska
- Scheduling oil and gas operations meetings across the Americas
- Aligning research collaborations between Brazilian and Alaskan institutions
Personal & Travel
- Planning travel between Brazil and Alaska's national parks
- Coordinating with family or friends in Anchorage, Juneau or Fairbanks
- Scheduling video calls during the Alaskan summer
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
Alaska Daylight Time (AKDT)
- UTC Offset: UTC-8
- IANA Timezone: America/Anchorage
- Daylight Saving: Second Sunday in March to First Sunday in November
- Major Cities: Anchorage, Juneau, Fairbanks, Wasilla, Sitka
- Coverage: Most of the US state of Alaska during the warmer months
Quick Reference: BRT to AKDT
Remember: AKDT is 5 hours behind BRT during the northern summer
Frequently Asked Questions
What is the time difference between BRT and AKDT?
Brasilia Time (BRT) is UTC-3, and Alaska Daylight Time (AKDT) is UTC-8. AKDT is 5 hours behind BRT. When it is 12:00 PM in Brasilia, it is 7:00 AM in Anchorage.
When does this BRT to AKDT conversion apply?
AKDT is in effect from the second Sunday in March to the first Sunday in November. Outside this window, Alaska reverts to AKST (UTC-9) and the gap to BRT becomes 6 hours.
Does Brazil observe daylight saving time?
No. Brazil ended DST in 2019, so BRT remains at UTC-3 year-round. Only the AKDT/AKST seasonal change affects this pairing.
What are the best times for BRT-AKDT business calls?
There is workable overlap in the late afternoon. 4:00 to 6:00 PM BRT corresponds to 11:00 AM to 1:00 PM AKDT — comfortable for both teams. Earlier slots like 1:00 PM BRT (8:00 AM AKDT) also work for early Alaska starts.
Which countries/regions use AKDT timezone?
AKDT covers most of the US state of Alaska during the warmer months. Major cities include Anchorage, Juneau, Fairbanks, Wasilla and Sitka. The Aleutian Islands further west use HDT/HST.
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
- • AKDT is 5 hours behind BRT — subtract 5 hours from a Brasilia time to get the Anchorage time.
- • Best meeting window: 1:00 to 6:00 PM BRT lines up with 8:00 AM to 1:00 PM AKDT — solid overlap on a normal work day.
- • When Alaska switches to AKST in November, the gap grows to 6 hours. Update recurring meetings or rely on IANA identifiers.
- • Brazil has no DST since 2019, so the Brazilian end of the conversion is stable year-round.
- • Use IANA identifiers (America/Sao_Paulo and America/Anchorage) in calendars to handle DST automatically.
- • Avoid scheduling before 7:00 AM AKDT or after 6:00 PM BRT to keep both sides within reasonable office hours.