AKST to BRT Converter
Convert time between Alaska Standard Time (AKST) and Brasilia Time (BRT)
Alaska Standard Time (AKST)
Brasilia Time (BRT)
Time Difference
Brasilia Time (BRT) is 0 hours ahead of Alaska Standard Time (AKST)
Select Date
Select Time
Quick Reference
| AKST | 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 AKST to BRT Time Conversion
Converting between Alaska Standard Time (AKST) and Brasilia Time (BRT) connects Anchorage, Juneau and Fairbanks with Brazil during the northern winter. AKST is UTC-9 and BRT is UTC-3, putting Sao Paulo, Rio de Janeiro and Brasilia 6 hours ahead of Alaska.
This converter uses the IANA timezone database for accurate calculations. AKST is observed from the first Sunday in November to the second Sunday in March. Outside that window, Alaska switches to AKDT (UTC-8), which shrinks the gap to BRT to 5 hours.
Common Use Cases for AKST to BRT Conversion
Business & Work
- Coordinating winter logistics calls between Alaskan and Brazilian operations teams
- Scheduling export and import meetings during the Alaskan off-season
- Aligning research handovers between Alaskan institutions and Brazilian universities
Personal & Travel
- Planning winter travel between Alaska and Brazil
- Coordinating with family or friends in Sao Paulo, Rio de Janeiro or Brasilia
- Scheduling video calls during the long Alaskan nights
Time Zone Information
Alaska Standard Time (AKST)
- UTC Offset: UTC-9
- IANA Timezone: America/Anchorage
- Daylight Saving: First Sunday in November to Second Sunday in March
- Major Cities: Anchorage, Juneau, Fairbanks, Wasilla, Sitka
- Coverage: Most of the US state of Alaska during the colder 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: AKST to BRT
Remember: BRT is 6 hours ahead of AKST during the northern winter
Frequently Asked Questions
What is the time difference between AKST and BRT?
Alaska Standard Time (AKST) is UTC-9, and Brasilia Time (BRT) is UTC-3. BRT is 6 hours ahead of AKST. When it is 12:00 PM in Anchorage, it is 6:00 PM in Brasilia.
When does this AKST to BRT conversion apply?
AKST runs from the first Sunday in November to the second Sunday in March. Outside that window, Alaska switches to AKDT (UTC-8), and the gap to BRT shrinks to 5 hours.
How does the time difference change throughout the year?
During the northern winter the offset is 6 hours; during the northern summer it shrinks to 5 hours when Alaska is on AKDT. Brazil ended DST in 2019, so the Brazilian side never shifts.
What are the best times for AKST-BRT business calls?
The 6-hour gap still allows useful overlap. A late Alaskan morning (10:00 to 11:00 AM AKST) maps to a Brazilian late afternoon (4:00 to 5:00 PM BRT). For Brazilian morning starts (9:00 to 10:00 AM BRT), Alaskan contacts will be online from 3:00 to 4:00 AM AKST — usually too early.
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 AKST timezone?
AKST is used in most of the US state of Alaska during the colder months. Major cities include Anchorage, Juneau, Fairbanks, Wasilla and Sitka.
Pro Tips
- • BRT is 6 hours ahead of AKST — add 6 hours to an Anchorage time to get the Brasilia time.
- • When Alaska switches to AKDT in March, the offset shrinks to 5 hours until November.
- • 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 (11:00 AM to 1:00 PM AKST) maps to a late Brazilian workday (5:00 to 7:00 PM BRT).
- • For shorter calls, an Alaskan early morning (7:00 to 8:00 AM AKST) lines up with the Brazilian early afternoon (1:00 to 2:00 PM BRT).