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ADT
12am
3am
6am
9am
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3pm
6pm
9pm
GreenlandWGST
UTC−1
2h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Nuuk's clocks go back 1 hour on Sun, Oct 25 · WGST → WGT

Quick answers

Selected conversion

9:00 am09:00 ADT (UTC-3), Oct 17, 2026 = 11:00 am11:00 WGST (UTC-1), Oct 17, 2026

ADT is 2 hours behind Nuuk.

How the time difference changes

For most of the year, ADT is 2 hours behind Nuuk. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 27, 2027, ADT is 1 hour behind Nuuk. From Nov 1, 2026 to Mar 14, 2027, AST is 2 hours behind Nuuk.

For most of the year, working hours of 9:00 am to 6:00 pm in ADT correspond to 11:00 am to 8:00 pm in Nuuk. At other times of the year, working hours of 9:00 am to 6:00 pm in AST correspond to 11:00 am to 8:00 pm in Nuuk or working hours of 9:00 am to 6:00 pm in ADT correspond to 10:00 am to 7:00 pm in Nuuk.For most of the year, working hours of 09:00 to 18:00 in ADT correspond to 11:00 to 20:00 in Nuuk. At other times of the year, working hours of 09:00 to 18:00 in AST correspond to 11:00 to 20:00 in Nuuk or working hours of 09:00 to 18:00 in ADT correspond to 10:00 to 19:00 in Nuuk.

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

Time Difference

Atlantic Daylight Time is 2 hours behind WGST (Western Greenland Summer Time).
9:00 am09:00 in ADT is 11:00 am11:00 in Nuuk, Greenland

ADT to Nuuk call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in ADT which corresponds to 11am-6pm11:00-18:00 in Nuuk

9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
11:00 am11:00 WGST (Western Greenland Summer Time) (Nuuk, Greenland). Offset UTC -1:00 hours

9:00 am09:00 ADT / 11:00 am11:00 Nuuk, Greenland

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
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Atlantic Daylight Time

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

Countries using this time zone: Bermuda, Canada, Greenland

Principal Cities: The largest city in the ADT time zone is Halifax in Canada, with about 471,559 people. Other major cities in this time zone include Sydney, Moncton, Saint John, Fredericton.

French: HAA - Heure Avancée de l'Atlantique

Map of the areas on Atlantic Daylight Time (ADT)
ADT part of the year

Today all shaded areas are on ADT.

Daylight Saving: Atlantic Daylight Time (ADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Atlantic Standard Time (AST).

123456789101112Start: Atlantic Daylight Time (ADT) started 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. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Atlantic Daylight Time (ADT) ends 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 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See Canada daylight saving time and upcoming clock changes worldwide.

ADT 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 ADT
  • P - short form of 'Papa'
IANA/Olson: Reflects ADT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Glace_Bay
  • America/Goose_Bay
  • America/Halifax
  • America/Moncton
  • America/Thule
  • Atlantic/Bermuda
  • Canada/Atlantic
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

Nuuk Time Zone and Facts

Time Zone

Abbreviation / Offset
WGST – Western Greenland Summer Time, UTC-1 (now, daylight saving time)
WGT – West Greenland Time, UTC-2 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, October 25, 2026 at 12:00 amSunday, October 25, 2026 at 00:00: clocks go back 1 hour to Saturday, October 24, 2026 at 11:00 pmSaturday, October 24, 2026 at 23:00 (WGT). DST ends on the last Sunday of October each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Saturday, March 27, 2027 at 11:00 pmSaturday, March 27, 2027 at 23:00: clocks go forward 1 hour to Sunday, March 28, 2027 at 12:00 amSunday, March 28, 2027 at 00:00 (WGST). Also called Spring Forward or Summer Time.

Nuuk Facts

Country
Greenland
Alternative Names
GOH, Godhopa, Godthaab, Godthab, Godthåb, Nououk, Nuk, Nuka, Nukas, Nuko, Nuuk, Nuuk (Godthab), Nuuk (Godthåb), Nuuks, Nūka, nu ke, nuk, nuka, nukeu, nuku, nwk, nwʼwq, Νουούκ, Нук, Нуук, Նուուկ, נואוק, نوك, نوک, नूक, নুক, ਨੂਕ, ନୁକ, நூக், นุก, ნუუკი, ᓅᒃ, ヌーク, 努克, 누크
Population
14,798
Currency
Krone (DKK)
Geographic Coordinates
64° 11' N Latitude / 51° 43' W Longitude
International Dialing Code
+299