Home > Time Zones > Abbreviations > AMT – Amazon Time

AMT – Amazon Time (Standard Time)

Time zone map of AMT
Currently observing AMT.
Areas with same time currently (UTC -4:00).
Currently observing AMT – Amazon Time.
Currently has same time zone offset as AMT (UTC -4:00) but different time zone name.

Amazon Time (AMT) is 4 hours behind Coordinated Universal Time (UTC). This time zone is a standard time zone and is used in: South America.

See full time zone map

Summer Time & DST

Some places observe daylight saving time/summer time during the summer, and therefore use AMST (Amazon Summer Time) in the summer.

Email time zone indicator: -0400

An email sent from someone in the Amazon Time (AMT) time zone will have the time zone listed as "-0400" in the headers of the email. (However, "-0400" does not have to be in Amazon Time, as other time zones could have the same UTC offset).

Where and when is AMT observed?

South America

Brazilian states using AMT in the winter and AMST in the summer

  • Mato Grosso (some exceptions, but including Cuiabá) Show

    Exceptions: Água Boa, Alto da Boa Vista, Alto Araguaia, Alto Taquari, Araguaiana, Araguainha, Barra do Garças, Bom Jesus do Araguaia, Campinápolis, Canabrava do Norte, Canarana, Cocalinho, Confresa, General Carneiro, Luciara, Nova Nazaré, Nova Xavantina, N

  • Mato Grosso Do Sul (includes Campo Grande)

Brazilian states using AMT all year

  • Amazonas (includes Manaus), except western part
  • Rondônia (includes Porto Velho)
  • Roraima (includes Boa Vista)

Other time zones in UTC -4:00

Some time zones exist that have the same offset as AMT, but can be found under a different name:


AMT time now

4:07:50AM

Friday, August 28, 2015

  • AMT will be observed in Cuiabá until Oct 18, 2015 at 12:00 AM
  • UTC Offset: UTC -4:00
  • Same time as Washington DC

Find current time and time zone by city


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Other time zones named AMT

AMT – Armenia Time

Example cities

Brazil – Manaus (All Year)
Brazil – Cuiabá (Winter)

Related time zones

AMST – Amazon Summer Time (Daylight Time)


Time Zone Map with DST

Time zone map

Time Zone Map