AMT — Amazon Time
See how Amazon Time (UTC-4) is used in Brazil, view the current offset, and compare AMT with other time zones.
Amazon Time in Brazil
AMT stands for Amazon Time, the UTC-4 time zone used in parts of Brazil. This page focuses only on Amazon Time and not other meanings of AMT.
No DST Adjustment
Amazon Time does not observe daylight saving time, so it stays at UTC-4 year-round. The page tracks offset accuracy and historical timezone changes using the IANA timezone database.
Convert AMT Easily
Compare AMT with other time zones using visual hour-by-hour tables and scheduling grids. Export meetings with ICS download or send them to Google Calendar and Gmail.
AMT (Amazon Time, UTC-4) is the time standard used in parts of Brazil, including cities such as Manaus and Parintins.
Looking for Armenia Time? See /time-converter/amt-armenia-time-zone.
How to Convert AMT to Other Time Zones
Open the AMT converter page: Go to
https://www.xconvert.com/time-converter/amt-time-zoneto load Amazon Time already on the comparison grid, which is useful when you are scheduling a call with contacts in Manaus or coordinating logistics across Brazil. You will see a 24-hour horizontal timeline with colored work, evening, and night bands, plus the Amazon Time row pre-loaded so you can compare business-friendly hours visually.Add comparison cities: Click + Add City and search for cities you want to compare against Amazon Time, such as other locations your team, clients, or travel plans depend on. This is especially practical for remote coordination, shipment timing, or regional operations when Amazon Time in Brazil needs to line up with other offices shown on the grid.
Select a time range: Click Select to enter selection mode, then drag across the Amazon Time row to highlight the hours you want to compare, such as a morning or afternoon work block in Manaus. You can drag the center of the purple selection to move it or use the left and right handles to resize it, which helps when narrowing down a meeting window that avoids gray night hours and stays inside green work-hour slots.
Export and share the result: After selecting a range, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link to send the chosen time window to coworkers, clients, or travel partners. This is useful when a Brazil-based operations team wants everyone to receive the same meeting window in their own calendar system without manually rechecking offsets.
About Amazon Time (AMT)
Amazon Time (AMT) is the abbreviation for a Brazilian time zone with a fixed offset of UTC-4. It is used in Brazil and applies to principal cities including Manaus, Itacoatiara, Parintins, Manacapuru, Coari, Tefé, Humaitá, Rio Preto da Eva, Maués, and Carauari.
Amazon Time does not observe daylight saving time and has no counterpart, which means the offset remains UTC-4 throughout the year. That consistency is useful for recurring business calls, transport coordination, and operational planning because the local clock in Amazon Time does not shift seasonally.
Amazon Time also shares its UTC-4 offset with several other abbreviations, including AST, AT, BOT, CDT, CIDST, CLT, EDT, ET, FKT, GYT, Q, and VET. Even when the offset matches, the abbreviation and regional usage can differ, so using Amazon Time explicitly is the clearest option when arranging schedules tied to Brazil.
AMT and Daylight Saving Time
Amazon Time (AMT) does not observe daylight saving time. It does not switch forward or backward during the year, and it has no daylight-saving counterpart.
Because Amazon Time stays at UTC-4 all year, there are no DST transition dates to track and no seasonal clock changes to plan around. For recurring meetings, transport schedules, and regional coordination in Brazil, this means the Amazon Time clock remains stable from January through December.
Frequently Asked Questions
What does AMT stand for?
Amazon Time stands for a time zone used in Brazil with a UTC offset of UTC-4. It is commonly associated with cities such as Manaus, Itacoatiara, and Parintins, making it relevant for anyone coordinating schedules in that part of the country.
Is AMT the same as GMT?
Amazon Time is not the same as GMT. AMT is UTC-4, which means it is four hours behind Coordinated Universal Time and therefore differs from Greenwich Mean Time-based scheduling references used in many international contexts.
Which cities use AMT?
Amazon Time is used in Brazil and includes principal cities such as Manaus, Itacoatiara, Parintins, Manacapuru, Coari, Tefé, Humaitá, Rio Preto da Eva, Maués, and Carauari. These cities make AMT especially relevant for regional business operations, domestic coordination, and travel planning within the Brazilian Amazon area.
What is the UTC offset for AMT?
Amazon Time uses a fixed UTC offset of UTC-4. Since it does not observe daylight saving time, that offset does not change during the year, which makes recurring scheduling more predictable.
When does AMT change?
Amazon Time does not change during the year. It does not observe daylight saving time, does not switch to a summer variant, and remains on UTC-4 year-round.
Is AMT Amazon Time or Armenia Time?
AMT can refer to more than one time-zone abbreviation, but on this page it means Amazon Time, which is UTC-4. If you are looking for Armenia Time instead, use /time-converter/amt-armenia-time-zone, which covers the other meaning of AMT.