BRT to AMT Converter
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
9:00 am09:00 BRT (UTC-3), Oct 24, 2026 = 8:00 am08:00 AMT (UTC-4), Oct 24, 2026
BRT is 1 hour ahead of AMT.
BRT and AMT examples
These examples always use BRT (UTC-3) and AMT (UTC-4). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
BRT is 1 hour ahead of AMT.
How the time difference changes
BRT is 1 hour ahead of AMT year-round.
Working hours of 9:00 am to 6:00 pm in BRT correspond to 8:00 am to 5:00 pm in AMT.Working hours of 09:00 to 18:00 in BRT correspond to 08:00 to 17:00 in AMT.
Compare BRT time with AMT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Brasilia Time is 1 hour ahead of Amazon Time.
9:00 am09:00 in BRT is 8:00 am08:00 in AMT
BRT to AMT call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in BRT which corresponds to 9am-5pm09:00-17:00 in AMT
9:00 am09:00 Brasilia Time (BRT). Offset UTC -3:00 hours
8:00 am08:00 Amazon Time (AMT). Offset UTC -4:00 hours
9:00 am09:00 BRT / 8:00 am08:00 AMT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| BRT | AMT |
|---|---|
| 11:00pm previous day | |
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| 23:00 previous day | |
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Brasilia Time
Offset: BRT is 3 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Brazil
Principal Cities: The largest city in the BRT time zone is São Paulo in Brazil, with about 12.4 million people. Other major cities in this time zone include Rio de Janeiro, Belo Horizonte, Salvador, Fortaleza.
Daylight Saving: Clocks in Brasilia Time (BRT) do not change for daylight saving time, so BRT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
BRT representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
- Papa - Military abbreviation for BRT
- P - short form of 'Papa'
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasilia Time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- FKT - Falkland Islands Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- PYT - Paraguay Time
- SRT - Suriname Time
- UYT - Uruguay Time
Amazon Time
Offset: AMT is 4 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Brazil
Principal Cities: The largest city in the AMT time zone is Manaus in Brazil, with about 2.22 million people. Other major cities in this time zone include Campo Grande, Cuiabá, Porto Velho, Boa Vista.
Daylight Saving: Clocks in Amazon Time (AMT) do not change for daylight saving time, so AMT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
AMT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
- Quebec - Military abbreviation for AMT
- Q - short form of 'Quebec'
- Armenia Time - UTC +4
- Amazon Time - UTC -4
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time