South American time zones:

AMST – Amazon Summer Time



  • AMST is not observed in any location this year.

    Locations that used to be on AMST for part or all of the year are now on AMT (Amazon Time) instead.
Currently no cities are observing AMST

Find local time and time zone for a location

We recommend looking up by location name, not time zone name.

Time zone offset: UTC - 3 hours

AMST is 3 hours behind of Coordinated Universal Time (UTC)

Note that AMST is a daylight saving time/summer time zone. It is generally only used during the summer in the places listed below, during the winter AMT is used instead

Time zone abbreviation: AMST

Full name is Amazon Summer Time

Email time zone indicator: -0300

An email sent from someone in the AMST time zone will have the time zone listed as "-0300" in the headers of the email. (However, "-0300" does not have to be in AMST, as other time zones could have the same UTC offset).

For actual dates DST might be observed, look at the examples below

Where and when is AMST observed?

Areas using AMST in the summer and AMT during the winter

Time zone maps are under development and will be available later

Example location in AMST

Other time zones in South America

Go directly through the links below, or see the South America time zone list

Time zones in other regions

Related links