Current Time in Canada/Atlantic Time Zone
IANA Name: Canada/Atlantic
Standard Offset: UTC −04:00
Daylight Saving: Yes
DST Offset: UTC −03:00
DST Abbreviation: ADT
Currently Observing DST: Yes ✅
The Canada/Atlantic time zone at a glance
| Right now | 08:32 on Tuesday |
|---|---|
| UTC offset | UTC-03:00 (3 hours behind UTC) |
| Abbreviation | ADT |
| Daylight saving | Yes - Clocks change twice a year |
| Region | Canada |
What time is it in Canada/Atlantic?
The current local time in the Canada/Atlantic zone is 08:32 on Tuesday, 30 June 2026. The clock above updates every second. This zone runs on ADT, which is UTC-03:00 - That's 3 hours behind UTC.
Does it change for daylight saving time?
Yes. Canada/Atlantic uses daylight saving time, so the clocks move forward one hour in spring and back one hour in autumn. Right now it is on summer (daylight saving) time. Because of this, its UTC offset is not the same all year. New to clock changes? Read our plain-English guide to daylight saving time.
How to convert Canada/Atlantic time
Use the live clock for exact seconds, but for quick planning: 12:00 UTC = 09:00 local time, and 09:00 local time = 12:00 UTC. These examples use today's ADT offset, so they automatically reflect whether daylight saving is active now.
Use Canada/Atlantic when software asks for a time zone
Canada/Atlantic is the exact IANA identifier for this rule set. Use it in calendars, code, schedules, and travel planning instead of only writing UTC-03:00, because a plain UTC offset does not describe daylight-saving rules or future legal changes.
Where is Canada/Atlantic time used?
It is the official local time in Canada.
Best next checks for Canada/Atlantic
For a real-world meeting, compare Canada/Atlantic with a city page or use the time zone converter. For a reminder on your own device, set an online alarm after you confirm the local date and time.
💡 Tip: Setting up a call with someone in Canada? Remember they are on UTC-03:00. Check the live clock above before you pick a time, then compare nearby city pages for local context.
The Canada/Atlantic time zone - Frequently asked questions
What is the Canada/Atlantic time zone?
Canada/Atlantic is a time zone in the Canada region. It runs on ADT, which is UTC-03:00.
What is the UTC offset of Canada/Atlantic?
Canada/Atlantic is UTC-03:00 right now - 3 hours behind UTC. The offset shifts by an hour for part of the year because of daylight saving time.
Does Canada/Atlantic use daylight saving time?
Yes. The clocks move forward an hour in spring and back an hour in autumn.
Which countries use Canada/Atlantic time?
It is used in Canada.
How Alarm.now reads Canada/Atlantic
IANA rule set and current offset
Canada/Atlantic is treated as an IANA time-zone identifier, not just a short abbreviation. That means the page can connect the live clock to its UTC offset, standard abbreviation AST, daylight abbreviation ADT, and any daylight-saving rule changes.
Best use cases
Use this page when software, calendars, or travel plans ask for the exact IANA zone. For a place-based view, follow the linked country and city clocks above, or compare zones with the time zone converter.