AMT
Amazon Time
GMT -4
12am
3am
6am
9am
12pm
3pm
6pm
9pm
WGT
West Greenland Time
GMT -2
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

AMT is 2 hours behind WGT. AMT uses GMT -4, and WGT uses GMT -2 for this comparison.

For example, 8:00 am AMT is 10:00 am WGT. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9am-3pm AMT, which is 11am-5pm WGT.

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

Time Difference

Amazon Time is 2 hours behind West Greenland Time
8:00 am08:00 in AMT is 10:00 am10:00 in WGT

AMT to WGT call time
Best time for a conference call or a meeting is between 9am-3pm in AMT which corresponds to 11am-5pm in WGT

8:00 am08:00 Amazon Time (AMT). Offset UTC -4:00 hours
10:00 am10:00 West Greenland Time (WGT). Offset UTC -2:00 hours

8:00 am08:00 AMT / 10:00 am10:00 WGT

AMTWGT
12am (midnight)2am
1am3am
2am4am
3am5am
4am6am
5am7am
6am8am
7am9am
8am10am
9am11am
10am12pm (noon)
11am1pm
12pm (noon)2pm
1pm3pm
2pm4pm
3pm5pm
4pm6pm
5pm7pm
6pm8pm
7pm9pm
8pm10pm
9pm11pm
10pm12am (midnight)
11pm1am
00:0002:00
01:0003:00
02:0004:00
03:0005:00
04:0006:00
05:0007:00
06:0008:00
07:0009:00
08:0010:00
09:0011:00
10:0012:00
11:0013:00
12:0014:00
13:0015:00
14:0016:00
15:0017:00
16:0018:00
17:0019:00
18:0020:00
19:0021:00
20:0022:00
21:0023:00
22:0000:00
23:0001:00

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 1.598 million people. Other major cities in this time zone include Itacoatiara, Parintins, Manacapuru, 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.

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

West Greenland Time

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

WGT Time Zone Geo Map
WGT timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Western Greenland Summer Time (WGST).

Daylight saving time clock moves back for one hour from 12am to 11pmStart: West Greenland Time (WGT) started on Sunday, October 26, 2025 at 12:00 am local time and clocks were set one hour back to Saturday, October 25, 2025, 11:00 pm. Standard time starts annually on the last Sunday of October.

End: West Greenland Time (WGT) ends on Saturday, March 28, 2026 at 11:00 pm local time and clocks are set one hour forward to Sunday, March 29, 2026, 12:00 am local daylight time instead. Standard time ends annually on the last Saturday of March.

WGT 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 WGT
  • 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