Time difference
Boston to Ottawa Time Difference
Ottawa and Boston share the same time zone — when it's 12:00 PM in Boston, it's also 12:00 PM in Ottawa. (Boston (America/New_York, EDT); Ottawa (America/Toronto, EDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Ottawa and Boston are in the same time zone, so there is no offset between them. The best window for a call is 9 AM–5 PM in Boston, which is 9 AM–5 PM in Ottawa — an 8-hour overlap inside 9 AM–5 PM on both sides. Boston and Ottawa change their clocks together (or don't change at all), so the time difference between them stays the same all year.
- When it's 9:00 AM in Boston, it's 9:00 AM in Ottawa.
- When it's 9:00 AM in Ottawa, it's 9:00 AM in Boston.
Ottawa is currently in the same time zone as Boston.
Interactive converter
12:00PM
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Best times to meet
The 9 AM – 5 PM business windows in Boston and Ottawa overlap for 8 hours. 9 AM–5 PM in Boston is 9 AM–5 PM in Ottawa. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.
Quick conversion table
| Boston | Ottawa |
|---|---|
| 12 AM | 12:00 AM |
| 1 AM | 1:00 AM |
| 2 AM | 2:00 AM |
| 3 AM | 3:00 AM |
| 4 AM | 4:00 AM |
| 5 AM | 5:00 AM |
| 6 AM | 6:00 AM |
| 7 AM | 7:00 AM |
| 8 AM | 8:00 AM |
| 9 AM | 9:00 AM |
| 10 AM | 10:00 AM |
| 11 AM | 11:00 AM |
| 12 PM | 12:00 PM |
| 1 PM | 1:00 PM |
| 2 PM | 2:00 PM |
| 3 PM | 3:00 PM |
| 4 PM | 4:00 PM |
| 5 PM | 5:00 PM |
| 6 PM | 6:00 PM |
| 7 PM | 7:00 PM |
| 8 PM | 8:00 PM |
| 9 PM | 9:00 PM |
| 10 PM | 10:00 PM |
| 11 PM | 11:00 PM |
Daylight saving
On November 1, 2026, both Boston and Ottawa shift for daylight saving. After that, Ottawa will be the same time as Boston (currently the same time as Boston). The converter and the tables above always reflect the correct offset for the date you pick.
- Boston is currently observing daylight saving time.
- Ottawa is currently observing daylight saving time.
Frequently asked questions
- Is Ottawa ahead of or behind Boston?
- Ottawa is neither ahead of nor behind Boston — both cities share the same time zone.
- Are Ottawa and Boston in the same time zone?
- Ottawa and Boston share the same time zone.
- What time is 9 AM in Boston in Ottawa?
- 9:00 AM in Boston is 9:00 AM in Ottawa.
- What time is noon in Boston in Ottawa?
- 12:00 PM in Boston is 12:00 PM in Ottawa.
- What time is 5 PM in Boston in Ottawa?
- 5:00 PM in Boston is 5:00 PM in Ottawa. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in Boston in Ottawa?
- 3:00 PM in Boston is 3:00 PM in Ottawa.
- Is Boston currently observing daylight saving time?
- Boston is currently observing daylight saving time (summer time).
- Is Ottawa currently observing daylight saving time?
- Ottawa is currently observing daylight saving time (summer time).
- Do Boston and Ottawa observe daylight saving?
- On November 1, 2026, both Boston and Ottawa shift for daylight saving. After that, Ottawa will be the same time as Boston (currently the same time as Boston). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call Ottawa from Boston?
- Aim for 9 AM–5 PM in Boston, which is 9 AM–5 PM in Ottawa.
- When is the best time to call Boston from Ottawa?
- Aim for 9 AM–5 PM in Ottawa, which is 9 AM–5 PM in Boston.
- Boston (EDT) to Ottawa (EDT) — how do I convert quickly?
- No math needed — both cities are in the same time zone. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
- Boston to New York
- Boston to London
- Boston to Tokyo
- Boston to Dubai
- Boston to Singapore
- Boston to Los Angeles
- Boston to Sydney
- Boston to Paris
- Boston to Mumbai
- Boston to Hong Kong