Convert ADT Timezone
Convert Atlantic Daylight Time (ADT) to and from any other time zone.
Convert ADT to any other time zone and back. ADT is Atlantic Daylight Time, which runs at UTC-03:00.
The clock below starts on ADT using Halifax, Canada, so you can read straight across to the cities you care about. Add or remove rows to build the comparison you need, and set a date and time to check a moment in the past or future.
- General Working Hours
- General Non-Working Hours
- Sleeping Hours & Public Holidays
- * Indicates Daylight Saving Time is in effect.
For more converters, browse our full list of time zone converters.
ADT covers 7 IANA time zones, including America/Glace Bay, America/Goose Bay, America/Halifax, America/Moncton, America/Thule, Atlantic/Bermuda and 1 more. Daylight saving is applied automatically for whichever zone a city actually uses, so the result stays correct across the changeover.
The daylight saving time observed in the Atlantic Time Zone of North America. It is used by parts of eastern Canada (Nova Scotia, New Brunswick, Prince Edward Island) and some Caribbean islands during their summer months. It is one hour ahead of Atlantic Standard Time (AST).
See the ADT time zone overview for the full picture, or the full time zone converter to compare any cities you like.