BRT to AKST Converter
Convert time between Brasilia Time (BRT) and Alaska Standard Time (AKST)
Brasilia Time (BRT)
Alaska Standard Time (AKST)
Time Difference
Alaska Standard Time (AKST) is 0 hours ahead of Brasilia Time (BRT)
Select Date
Select Time
Quick Reference
| BRT | AKST |
|---|---|
| 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 AKST Time Conversion
Converting between Brasilia Time (BRT) and Alaska Standard Time (AKST) connects Brazil with Anchorage, Juneau and Fairbanks during the northern winter. BRT is UTC-3 and AKST is UTC-9, putting Alaska 6 hours behind Sao Paulo, Rio de Janeiro and Brasilia.
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 5 hours.
Common Use Cases for BRT to AKST Conversion
Business & Work
- Coordinating winter logistics calls between Brazilian and Alaskan operations teams
- Scheduling export and import meetings during the Alaskan off-season
- Aligning research handovers between Brazilian universities and Alaskan institutions
Personal & Travel
- Planning winter travel between Brazil and Alaska
- Coordinating with family or friends in Anchorage, Juneau or Fairbanks
- Scheduling video calls during the long Alaskan nights
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 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
Quick Reference: BRT to AKST
Remember: AKST is 6 hours behind BRT during the northern winter
Frequently Asked Questions
What is the time difference between BRT and AKST?
Brasilia Time (BRT) is UTC-3, and Alaska Standard Time (AKST) is UTC-9. AKST is 6 hours behind BRT. When it is 12:00 PM in Brasilia, it is 6:00 AM in Anchorage.
When does this BRT to AKST conversion apply?
AKST is observed from the first Sunday in November to the second Sunday in March. Outside this window, Alaska switches to AKDT (UTC-8), reducing the offset to 5 hours.
Does Brazil observe daylight saving time?
No. Brazil ended DST in 2019, so BRT remains at UTC-3 year-round. Only Alaska shifts seasonally in this pairing.
What are the best times for BRT-AKST business calls?
The 6-hour gap leaves a usable late-day overlap. 3:00 to 6:00 PM BRT corresponds to 9:00 AM to 12:00 PM AKST — solid morning slot in Alaska, mid-afternoon in Brazil. Avoid scheduling before 8:00 AM AKST when possible.
Which countries/regions use AKST timezone?
AKST covers most of the US state of Alaska during the colder months. Major cities include Anchorage, Juneau, Fairbanks, Wasilla and Sitka. The Aleutian Islands further west use HST/HDT.
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
- • AKST is 6 hours behind BRT — subtract 6 hours from a Brasilia time to get the Anchorage time.
- • Best meeting window: 3:00 to 6:00 PM BRT = 9:00 AM to 12:00 PM AKST — Alaska morning, Brazil afternoon.
- • When Alaska switches to AKDT in March, the gap drops to 5 hours. Recurring meetings will shift unless they reference IANA identifiers.
- • Brazil has no DST since 2019, so the Brazilian end of this pairing is constant year-round.
- • Use IANA identifiers (America/Sao_Paulo and America/Anchorage) in calendars to handle DST transitions automatically.
- • Alaska winters mean very short daylight; Alaska teams may prefer mid-morning calls when natural light is available.