ADT to Medicine Hat Time Converter
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Quick answers
Selected conversion
9:00 am09:00 ADT (UTC-3), Oct 26, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 26, 2026
ADT is 3 hours ahead of Medicine Hat.
How the time difference changes
In 2026, ADT is 3 hours ahead of Medicine Hat for most of the year. Until Mar 8, 2026, AST is 3 hours ahead of Medicine Hat. From Nov 1, 2026 to Mar 14, 2027, AST is 2 hours ahead of Medicine Hat. Briefly around clock changes, ADT is 4 hours ahead of Medicine Hat.
In 2026, working hours of 9:00 am to 6:00 pm in ADT correspond to 6:00 am to 3:00 pm in Medicine Hat for most of the year. At other times that year, working hours of 9:00 am to 6:00 pm in AST correspond to 6:00 am to 3:00 pm in Medicine Hat or working hours of 9:00 am to 6:00 pm in AST correspond to 7:00 am to 4:00 pm in Medicine Hat.In 2026, working hours of 09:00 to 18:00 in ADT correspond to 06:00 to 15:00 in Medicine Hat for most of the year. At other times that year, working hours of 09:00 to 18:00 in AST correspond to 06:00 to 15:00 in Medicine Hat or working hours of 09:00 to 18:00 in AST correspond to 07:00 to 16:00 in Medicine Hat.
Compare ADT time with Medicine Hat time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Atlantic Daylight Time is 3 hours ahead of MDT (Mountain Daylight Time).
9:00 am09:00 in ADT is 6:00 am06:00 in Medicine Hat, Canada
ADT to Medicine Hat call time
Best time for a conference call or a meeting is between 12pm-6pm12:00-18:00 in ADT which corresponds to 9am-3pm09:00-15:00 in Medicine Hat
9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
6:00 am06:00 MDT (Mountain Daylight Time) (Medicine Hat, Canada). Offset UTC -6:00 hours
9:00 am09:00 ADT / 6:00 am06:00 Medicine Hat, Canada
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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
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.
See Canada daylight saving time and upcoming clock changes worldwide.
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 - 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