EDT to Halifax
+1hEDT
EDTSOURCEHalifax
ADTGreen rows indicate typical business hours (9 AM - 5 PM)
EDT and ADT on the World Map
The map below highlights the EDT (Eastern Daylight Time) and ADT (Atlantic Standard Time) timezone regions across the globe.
EDT – Eastern Daylight Time
UTC-04:00Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.
- •EDT is observed from the second Sunday of March to the first Sunday of November.
- •During EDT, the US East Coast is only 4 hours behind London (instead of 5).
- •Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.
AST – Atlantic Standard Time
UTC-04:00Atlantic Standard Time (AST) is the time zone for the Canadian Atlantic provinces and the Caribbean, 4 hours behind UTC.
- •Puerto Rico uses AST year-round and does not observe DST.
- •AST is 1 hour ahead of EST.
- •Halifax, the capital of Nova Scotia, is the largest city in AST Canada.
About Halifax
WikipediaHalifax operates on Atlantic Time (AST/ADT), UTC-4. As Canada's major Atlantic port and closest city to Europe, Halifax bridges North American and European business.
Halifax harbors the second largest natural ice-free harbor in the world.
EDT vs Halifax: Offsets, DST and Best Call Times
EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. Halifax runs on Atlantic Daylight Time (ADT) at UTC-03:00, also currently on daylight saving time. That puts EDT 1 hour ahead of Halifax — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in EDT it is 10:00 AM in Halifax. Midnight in EDT is 1:00 AM in Halifax.Halifax observes daylight saving time while EDT does not, so the gap narrows or widens by an hour part of the year.
EDT to Halifax time conversion table
| EDT (EDT) | Halifax (ADT) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert EDT to Halifax time
- Scheduling a call from EDT to Halifax: a 10:00 AM start in EDT lands at 11:00 AM in Halifax, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both EDT and Halifax are inside the 9-to-5 working day between 9:00 AM and 4:00 PM EDT time (10:00 AM–5:00 PM ADT). That is roughly 7 hours of usable overlap.
- Booking travel or deliveries: tracking Halifax local time against EDT keeps pickup windows and arrival estimates honest across the +1h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM EDT" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM EDT as the recurring meeting window if you work primarily from EDT and need Halifax colleagues present.
- Halifax: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About EDT (Eastern Daylight Time)
Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.
About AST (Atlantic Standard Time)
Atlantic Standard Time (AST) covers Canada's Atlantic provinces (Nova Scotia, New Brunswick, Prince Edward Island, and most of Labrador), as well as several Caribbean nations. Puerto Rico and the US Virgin Islands use AST year-round without daylight saving time. The Canadian provinces switch to Atlantic Daylight Time (ADT) in summer.
Best time to call between EDT and Halifax
Both EDT and Halifax sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM EDT, which is 10:00 AM–5:00 PM ADT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
EDT and Halifax share 7 hours of working-hours overlap (9:00 AM–4:00 PM EDT), so scheduling a live meeting is straightforward.
EDT is 1 hour ahead of Halifax (EDT UTC-04:00 → ADT UTC-03:00). The shared working window is 9:00 AM–4:00 PM EDT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
Halifax
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between EDT and Halifax?
EDT (EDT, UTC-04:00) is 1 hour ahead of Halifax (ADT, UTC-03:00). The gap is currently +1h.
How do I convert EDT time to Halifax time?
Add +1h to EDT local time. For example, 9:00 AM in EDT is 10:00 AM in Halifax.
What time is it in Halifax right now?
Halifax uses ADT at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from EDT.
What is the best time to call Halifax from EDT?
Call between 9:00 AM and 4:00 PM EDT — that maps to 10:00 AM–5:00 PM ADT and keeps both parties inside the working day.
Which is ahead, EDT or Halifax?
EDT is 1 hour ahead of Halifax. When it is 12:00 PM in EDT it is 1:00 PM in Halifax.
Do EDT and Halifax use different time zones?
EDT uses EDT at UTC-04:00, while Halifax (Canada) uses ADT at UTC-03:00. The IANA identifiers are America/New_York and America/Halifax.
Does daylight saving time affect the EDT–Halifax difference?
Yes at the moment: Halifax is on daylight saving time and EDT is not, so the +1h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share EDT's time zone?
EDT also covers New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
Which countries use EDT, EDT's zone?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Bahamas, Haiti, Turks and Caicos.
Is there a day difference between EDT and Halifax?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between EDT and Halifax?
Halifax is +1h from EDT.
What timezone is EDT in?
EDT operates on its local timezone.
What timezone is Halifax in?
Halifax operates on Atlantic Time (AST/ADT), UTC-4. As Canada's major Atlantic port and closest city to Europe, Halifax bridges North American and European business.
What are the business hours in Halifax?
Standard business hours in Halifax are 9:00 AM - 5:00 PM AST.
Which countries use EDT (Eastern Daylight Time)?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Bahamas, Haiti, Turks and Caicos.
Does EDT observe daylight saving time?
Yes, EDT switches to EST during summer months.
What are some interesting facts about EDT?
EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).
Which cities are in the AST timezone?
Major cities in the AST timezone include Halifax, San Juan, Santo Domingo, Caracas, La Paz, Fredericton, Charlottetown.
What is the UTC offset for AST?
Atlantic Standard Time (AST) is at UTC-04:00. During daylight saving time, it shifts to ADT.
What should I know about the AST timezone?
Puerto Rico uses AST year-round and does not observe DST. AST is 1 hour ahead of EST.
When is it midnight in EDT, what time is it in Halifax?
When it is 12:00 AM (midnight) in EDT (EDT), it is +1h later in Halifax (AST).
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