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AMT to UYST Converter

Updating current time…
AMT
Amazon Time
GMT -4
12am
3am
6am
9am
12pm
3pm
6pm
9pm
UYT/UYST
Uruguay Time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
UYST is not used on this date.

This converter uses UYT (UTC−3), as in Montevideo.

Keep UYST (UTC−2)

Quick answers

Selected conversion

8:00 am08:00 AMT (UTC-4), Oct 11, 2026 = 9:00 am09:00 UYT (UTC-3), Oct 11, 2026

AMT is 1 hour behind UYT.

AMT and UYST examples

These examples always use AMT (UTC-4) and UYST (UTC-2). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

AMT is 2 hours behind UYST.

How the time difference changes

AMT is 1 hour behind UYT year-round.

Working hours of 9:00 am to 5:00 pm in AMT correspond to 10:00 am to 6:00 pm in UYT.Working hours of 09:00 to 17:00 in AMT correspond to 10:00 to 18:00 in UYT.

Compare AMT time with UYST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Amazon Time is 1 hour behind Uruguay Time.
8:00 am08:00 in AMT is 9:00 am09:00 in UYT

AMT to UYT call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in AMT which corresponds to 10am-5pm10:00-17:00 in UYT

8:00 am08:00 Amazon Time (AMT). Offset UTC -4:00 hours
9:00 am09:00 Uruguay Time (UYT). Offset UTC -3:00 hours

8:00 am08:00 AMT / 9:00 am09:00 UYT

AMTUYT
12:00am1:00am
1:00am2:00am
2:00am3:00am
3:00am4:00am
4:00am5:00am
5:00am6:00am
6:00am7:00am
7:00am8:00am
8:00am9:00am
9:00am10:00am
10:00am11:00am
11:00am12:00pm
12:00pm1:00pm
1:00pm2:00pm
2:00pm3:00pm
3:00pm4:00pm
4:00pm5:00pm
5:00pm6:00pm
6:00pm7:00pm
7:00pm8:00pm
8:00pm9:00pm
9:00pm10:00pm
10:00pm11:00pm
11:00pm12:00am
00:0001:00
01:0002:00
02:0003:00
03:0004:00
04:0005:00
05:0006:00
06:0007:00
07:0008:00
08:0009:00
09:0010:00
10:0011:00
11:0012:00
12:0013:00
13:0014:00
14:0015:00
15:0016:00
16:0017:00
17:0018:00
18:0019:00
19:0020:00
20:0021:00
21:0022:00
22:0023:00
23:0000:00

Amazon Time

Offset: AMT is 4 hours behind Greenwich Mean Time (GMT) and is used in South America

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 Itacoatiara, Manacapuru, Parintins, Coari.

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 Time Zone Geo Map
AMT timezone map

AMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for AMT
  • Q - short form of 'Quebec'
AMT Abbreviation: Several time zones share AMT abbreviation and it could refer to these time zones
  • Armenia Time - UTC +4
  • Amazon Time - UTC -4
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

Uruguay Summer Time

Offset: UYST is 2 hours behind Greenwich Mean Time (GMT) and is used in South America

UYST Time Zone Geo Map
UYST timezone map

UYST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -02 - basic short
  • -0200 - basic
  • -02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0200 - sign character (-) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Oscar - Military abbreviation for UYST
  • O - short form of 'Oscar'
Time zones with the GMT -2 offset:
  • PMDT - Pierre & Miquelon Daylight Time
  • WGT - West Greenland Time
  • BRST - Brasilia Summer Time
  • FNT - Fernando de Noronha Time
  • O - Oscar Time Zone
  • UYST - Uruguay Summer Time
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT