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AMT – Amazon Time (Standard Time)

Time Zone names, codes and abbreviations for Standard Time and Daylight Saving Time (DST) around the world.

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

Amazon Time (AMT) is 4 hours behind Coordinated Universal Time (UTC). This time zone is in use during standard time 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.

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

    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, Novo Santo Antônio, Novo São Joaquim, Pontal do Araguaia, Ponte Branca, Porto Alegre do Norte, Querência, Ribeirão Cascalheira, Ribeirãozinho, Santa Cruz do Xingu, Santa Terezinha, São Félix do Araguaia, São José do Xingu, Serra Nova Dourada, Torixoréu e Vila Rica.

  • 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

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

Time zones by continent/region

See all Time zone abbreviations

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