Boston to Ottawa Time Difference
Ottawa and Boston are on the same clock time. There is no time difference between them right now.
Is There a Time Difference Between Boston and Ottawa?
No — Ottawa and Boston are on exactly the same clock. Whatever the time is in Boston, it is the same in Ottawa, so nothing needs converting between them.
Best Time to Call Boston and Ottawa
Both cities are inside normal business hours between 9:00 AM and 5:00 PM in Boston — that's 9:00 AM to 5:00 PM in Ottawa. That's an 8-hour window, so a call fits comfortably in either side's working day.
both at work Boston only Ottawa only neither — hours shown along the strip are Boston local time.
Convert a Specific Time
Pick any date and time in Boston to see the exact equivalent in Ottawa.
Common Times Converted
Boston time on the left, Ottawa time on the right.
Boston to Ottawa: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Boston. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Boston | Ottawa | Working hours |
|---|---|---|
| 12:00 AM | 12:00 AM | — |
| 1:00 AM | 1:00 AM | — |
| 2:00 AM | 2:00 AM | — |
| 3:00 AM | 3:00 AM | — |
| 4:00 AM | 4:00 AM | — |
| 5:00 AM | 5:00 AM | — |
| 6:00 AM | 6:00 AM | — |
| 7:00 AM | 7:00 AM | — |
| 8:00 AM | 8:00 AM | — |
| 9:00 AM | 9:00 AM | Both cities |
| 10:00 AM | 10:00 AM | Both cities |
| 11:00 AM | 11:00 AM | Both cities |
| 12:00 PM | 12:00 PM | Both cities |
| 1:00 PM | 1:00 PM | Both cities |
| 2:00 PM | 2:00 PM | Both cities |
| 3:00 PM | 3:00 PM | Both cities |
| 4:00 PM | 4:00 PM | Both cities |
| 5:00 PM | 5:00 PM | — |
| 6:00 PM | 6:00 PM | — |
| 7:00 PM | 7:00 PM | — |
| 8:00 PM | 8:00 PM | — |
| 9:00 PM | 9:00 PM | — |
| 10:00 PM | 10:00 PM | — |
| 11:00 PM | 11:00 PM | — |
Understanding the Boston – Ottawa Time Difference
Boston runs on America/New_York, currently EDT (UTC-4:00). Ottawa runs on America/Toronto, currently EDT (UTC-4:00). Both offsets are identical right now, which is why the two cities show the same clock time.
This difference holds steady all year — no clock change in either city moves it. A meeting time that works in January works just as well in July.
Boston today
Ottawa today
Frequently Asked Questions
What is the time difference between Boston and Ottawa?
There is currently no time difference between Boston and Ottawa. Both cities are on the same clock time right now.
What time is it in Ottawa when it is 9:00 AM in Boston?
When it is 9:00 AM in Boston, it is 9:00 AM in Ottawa.
What is the best time to call between Boston and Ottawa?
Between 9:00 AM and 5:00 PM Boston time, which is 9:00 AM to 5:00 PM in Ottawa. Both cities are inside normal business hours during that window.
Does the time difference between Boston and Ottawa change during the year?
No. The difference between Boston and Ottawa stays fixed all year round — no clock change in either city moves it.
What time zones are Boston and Ottawa in?
Boston uses the America/New_York time zone, currently EDT (UTC-4:00). Ottawa uses America/Toronto, currently EDT (UTC-4:00).