AKDT to BRT Converter
Convert time between Alaska Daylight Time (AKDT) and Brasilia Time (BRT)
Alaska Daylight Time (AKDT)
Brasilia Time (BRT)
Time Difference
Brasilia Time (BRT) is 0 hours ahead of Alaska Daylight Time (AKDT)
Select Date
Select Time
Quick Reference
| AKDT | BRT |
|---|---|
| 18:00 | 23:00 |
| 20:00 | 01:00 |
| 22:00 | 03:00 |
| 00:00 | 05:00 |
| 02:00 | 07:00 |
| 04:00 | 09:00 |
| 06:00 | 11:00 |
| 08:00 | 13:00 |
| 10:00 | 15:00 |
| 12:00 | 17:00 |
| 14:00 | 19:00 |
| 16:00 | 21:00 |
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 AKDT to BRT Time Conversion
Converting between Alaska Daylight Time (AKDT) and Brasilia Time (BRT) connects Anchorage, Juneau and Fairbanks with Brazil during the northern summer. AKDT is UTC-8 and BRT is UTC-3, putting Sao Paulo, Rio de Janeiro and Brasilia 5 hours ahead of Alaska.
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 BRT to 6 hours.
Common Use Cases for AKDT to BRT Conversion
Business & Work
- Coordinating fishing and seafood industry calls between Alaska and Brazil
- Scheduling oil and gas operations meetings across the Americas
- Aligning research collaborations between Alaskan and Brazilian institutions
Personal & Travel
- Planning travel between Alaska's national parks and Brazil
- Coordinating with family or friends in Sao Paulo, Rio de Janeiro or Brasilia
- Scheduling video calls during the Alaskan summer
Time Zone Information
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
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
Quick Reference: AKDT to BRT
Remember: BRT is 5 hours ahead of AKDT during the northern summer
Frequently Asked Questions
What is the time difference between AKDT and BRT?
Alaska Daylight Time (AKDT) is UTC-8, and Brasilia Time (BRT) is UTC-3. BRT is 5 hours ahead of AKDT. When it is 12:00 PM in Anchorage, it is 5:00 PM in Brasilia.
When does this AKDT to BRT conversion apply?
AKDT runs from the second Sunday in March to the first Sunday in November. Outside that window, Alaska switches back to AKST (UTC-9), and the gap to BRT becomes 6 hours.
How does the time difference change throughout the year?
During the northern summer the offset is 5 hours; during the northern winter it grows to 6 hours when Alaska is on AKST. Brazil ended DST in 2019, so the Brazilian side never shifts.
What are the best times for AKDT-BRT business calls?
The 5-hour gap leaves a useful overlap. A late Alaskan morning (10:00 to 11:00 AM AKDT) maps to a Brazilian afternoon (3:00 to 4:00 PM BRT). For Brazilian morning starts (9:00 to 10:00 AM BRT), Alaskan contacts will be online from 4:00 to 5:00 AM AKDT.
Which countries/regions use BRT timezone?
BRT is observed across most of Brazil, including Brasilia, Sao Paulo, Rio de Janeiro, Belo Horizonte and Salvador. A few western Brazilian states use AMT (UTC-4) instead.
Which countries/regions use AKDT timezone?
AKDT is used in most of the US state of Alaska during the warmer months. Major cities include Anchorage, Juneau, Fairbanks, Wasilla and Sitka.
Pro Tips
- • BRT is 5 hours ahead of AKDT — add 5 hours to an Anchorage time to get the Brasilia time.
- • When Alaska switches to AKST in November, the offset grows to 6 hours until March.
- • Brazil does not observe DST, so any seasonal change comes from the Alaskan side.
- • Use IANA identifiers (America/Anchorage and America/Sao_Paulo) so calendars handle the AKDT-AKST transitions automatically.
- • Late Alaskan morning to early afternoon (10:00 AM to 1:00 PM AKDT) is a strong window for joint Brazilian afternoon meetings.
- • A Brazilian end-of-day (5:00 to 6:00 PM BRT) maps to an Alaskan lunchtime (12:00 to 1:00 PM AKDT).