ADT to WGST Converter
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
9:00 am09:00 ADT (UTC-3), Oct 12, 2026 = 11:00 am11:00 WGST (UTC-1), Oct 12, 2026
ADT is 2 hours behind WGST.
ADT and WGST examples
These examples always use ADT (UTC-3) and WGST (UTC-1). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
ADT is 2 hours behind WGST.
How the time difference changes
For most of the year, ADT is 2 hours behind WGST. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 27, 2027, ADT is 1 hour behind WGT. From Nov 1, 2026 to Mar 14, 2027, AST is 2 hours behind WGT.
For most of the year, working hours of 9:00 am to 5:00 pm in ADT correspond to 11:00 am to 7:00 pm in WGST. At other times of the year, working hours of 9:00 am to 5:00 pm in AST correspond to 11:00 am to 7:00 pm in WGT or working hours of 9:00 am to 5:00 pm in ADT correspond to 10:00 am to 6:00 pm in WGT.For most of the year, working hours of 09:00 to 17:00 in ADT correspond to 11:00 to 19:00 in WGST. At other times of the year, working hours of 09:00 to 17:00 in AST correspond to 11:00 to 19:00 in WGT or working hours of 09:00 to 17:00 in ADT correspond to 10:00 to 18:00 in WGT.
Compare ADT time with WGST 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 Western Greenland Summer Time.
9:00 am09:00 in ADT is 11:00 am11:00 in WGST
ADT to WGST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in ADT which corresponds to 11am-5pm11:00-17:00 in WGST
9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
11:00 am11:00 Western Greenland Summer Time (WGST). Offset UTC -1:00 hours
9:00 am09:00 ADT / 11:00 am11:00 WGST
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.
| ADT | WGST |
|---|---|
| 2:00am | |
| 3:00am | |
| 4:00am | |
| 5:00am | |
| 6:00am | |
| 7:00am | |
| 8:00am | |
| 9:00am | |
| 10:00am | |
| 11:00am | |
| 12:00pm | |
| 1:00pm | |
| 2:00pm | |
| 3:00pm | |
| 4:00pm | |
| 5:00pm | |
| 6:00pm | |
| 7:00pm | |
| 8:00pm | |
| 9:00pm | |
| 10:00pm | |
| 11:00pm | |
| 12:00am next day | |
| 1:00am next day | |
| 02:00 | |
| 03:00 | |
| 04:00 | |
| 05:00 | |
| 06:00 | |
| 07:00 | |
| 08:00 | |
| 09:00 | |
| 10:00 | |
| 11:00 | |
| 12:00 | |
| 13:00 | |
| 14:00 | |
| 15:00 | |
| 16:00 | |
| 17:00 | |
| 18:00 | |
| 19:00 | |
| 20:00 | |
| 21:00 | |
| 22:00 | |
| 23:00 | |
| 00:00 next day | |
| 01:00 next day |
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
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).
Start: 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.
End: 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.
ADT representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -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.
- Papa - Military abbreviation for ADT
- P - short form of 'Papa'
- America/Glace_Bay
- America/Goose_Bay
- America/Halifax
- America/Moncton
- America/Thule
- Atlantic/Bermuda
- Canada/Atlantic
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasília time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- SRT - Suriname Time
- UYT - Uruguay Time
Western Greenland Summer Time
Offset: WGST is 1 hour behind Greenwich Mean Time (GMT).
Today all shaded areas are on WGST.
Daylight Saving: Western Greenland Summer Time (WGST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe West Greenland Time (WGT).
Start: Western Greenland Summer Time (WGST) started on Saturday, March 28, 2026 at 11:00 pm23:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 12:00 am00:00. Daylight saving starts annually on the last Saturday of March.
End: Western Greenland Summer Time (WGST) ends on Sunday, October 25, 2026 at 12:00 am00:00 local time and clocks are set one hour back to Saturday, October 24, 2026, 11:00 pm23:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
WGST representations, usage and related time zones
- -01 - basic short
- -0100 - basic
- -01:00 - extended
- -0100 - sign character (-) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the west of the zero meridian.
- November - Military abbreviation for WGST
- N - short form of 'November'
- EGT - East Greenland Time
- WGST - Western Greenland Summer Time
- AZOT - Azores Time
- CVT - Cape Verde Time
- N - November Time Zone