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AMT/AMST

Amazon Time

UTC−4

12am

3am

6am

9am

12pm

3pm

6pm

9pm

AMST is not used on this date.

This converter uses AMT (UTC−4), as in Cuiaba.

Keep AMST (UTC−3)

NDT/NST

Newfoundland Daylight Time

UTC−2:30

1h 30m ahead

12am

3am

6am

9am

12pm

3pm

6pm

9pm

Newfoundland Time is on daylight saving time: NDT (UTC−2:30) until Sun, Nov 1.

Use NST all year (UTC−3:30)

Quick answers

Selected conversion

8:00 am08:00 AMT (UTC-4), Oct 17, 2026 = 9:30 am09:30 NDT (UTC-2:30), Oct 17, 2026

AMT is 1 hour and 30 minutes behind NDT.

AMST and NST examples

These examples always use AMST (UTC-3) and NST (UTC-3:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

AMST is 30 minutes ahead of NST.

How the time difference changes

For most of the year, AMT is 1 hour and 30 minutes behind NDT. From Nov 1, 2026 to Mar 14, 2027, AMT is 30 minutes behind NST.

For most of the year, working hours of 9:00 am to 6:00 pm in AMT correspond to 10:30 am to 7:30 pm in NDT. At other times of the year, working hours of 9:00 am to 6:00 pm in AMT correspond to 9:30 am to 6:30 pm in NST.For most of the year, working hours of 09:00 to 18:00 in AMT correspond to 10:30 to 19:30 in NDT. At other times of the year, working hours of 09:00 to 18:00 in AMT correspond to 09:30 to 18:30 in NST.

Compare AMST time with NST 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 and 30 minutes behind Newfoundland Daylight Time.
8:00 am08:00 in AMT is 9:30 am09:30 in NDT

AMT to NDT call time
Best time for a conference call or a meeting is between 9am-4:30pm09:00-16:30 in AMT which corresponds to 10:30am-6pm10:30-18:00 in NDT

8:00 am08:00 Amazon Time (AMT). Offset UTC -4:00 hours
9:30 am09:30 Newfoundland Daylight Time (NDT). Offset UTC -2:30 hours

8:00 am08:00 AMT / 9:30 am09:30 NDT

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
AMT	NDT
	1:30am
	2:30am
	3:30am
	4:30am
	5:30am
	6:30am
	7:30am
	8:30am
	9:30am
	10:30am
	11:30am
	12:30pm
	1:30pm
	2:30pm
	3:30pm
	4:30pm
	5:30pm
	6:30pm
	7:30pm
	8:30pm
	9:30pm
	10:30pm
	11:30pm
	12:30am next day
	01:30
	02:30
	03:30
	04:30
	05:30
	06:30
	07:30
	08:30
	09:30
	10:30
	11:30
	12:30
	13:30
	14:30
	15:30
	16:30
	17:30
	18:30
	19:30
	20:30
	21:30
	22:30
	23:30
	00:30 next day

Amazon Summer Time

Offset: AMST is 3 hours behind Greenwich Mean Time (GMT).

AMST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data

-03 - basic short
-0300 - basic
-03:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers

-0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.

Military/NATO: Used by the U.S. military, Chinese military and others

Papa - Military abbreviation for AMST
P - short form of 'Papa'

AMST Abbreviation: Several time zones share AMST abbreviation and it could refer to these time zones

Armenia Summer Time - UTC +5
Amazon Summer Time - UTC -3

Time zones with the GMT -3 offset:

ADT - Atlantic Daylight Time
PMT - Pierre & Miquelon Standard Time
PMST - Pierre & Miquelon Standard Time
AMST - Amazon Summer Time
ART - Argentina Time
BRT - Brasilia Time
CLST - Chile Summer Time
FKST - Falkland Islands Summer Time
FKT - Falkland Islands Time
GFT - French Guiana Time
P - Papa Time Zone
PYST - Paraguay Summer Time
PYT - Paraguay Time
SRT - Suriname Time
UYT - Uruguay Time

Newfoundland Standard Time

Offset: NST is 3 hours and 30 minutes behind Greenwich Mean Time (GMT).

Countries using this time zone: Canada

Principal Cities: The largest city in the NST time zone is St. John's in Canada, with about 110,525 people. Other major cities in this time zone include Corner Brook, Grand Falls-Windsor, Gander, Clarenville.

French: HNT - Heure Normale de Terre-Neuve

Map of the areas on Newfoundland Standard Time (NST) — NST part of the year
Today the shaded areas are on UTC−2:30 (NDT).
Open the world time zone map © OpenStreetMap

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

End: Newfoundland Standard Time (NST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

Start: Newfoundland Standard Time (NST) starts on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

See Canada daylight saving time and upcoming clock changes worldwide.

NST representations, usage and related time zones