About the time in Ottawa
Ottawa is in Canada and uses the America/Toronto time zone. Right now it is EDT there, which is UTC−04:00. Clocks in Ottawa change for daylight saving time, so the offset is different in summer and winter.
- Time zones
- Eastern Standard Time (EST), UTC−05:00
Eastern Daylight Time (EDT), UTC−04:00
- UTC offset
- UTC−05:00 / UTC−04:00 (changes during the year)
- Daylight saving
- Yes
- Clock changes 2026
- Forward 1 hour on Sunday 8 March at 02:00 local time (to 03:00)
Back 1 hour on Sunday 1 November at 02:00 local time (to 01:00)
- Clock changes 2027
- Forward 1 hour on Sunday 14 March at 02:00 local time (to 03:00)
Back 1 hour on Sunday 7 November at 02:00 local time (to 01:00)
- Difference from you
- shown when the page loads
- IANA time zone
America/Toronto- Country
- Canada
Time difference from Ottawa
How far ahead or behind Ottawa other major cities are right now.
Questions about the time in Ottawa
What time zone is Ottawa in?
Ottawa uses the America/Toronto time zone. It switches between Eastern Standard Time (UTC−05:00) and Eastern Daylight Time (UTC−04:00) for daylight saving time.
Does Ottawa observe daylight saving time?
Yes. In 2026, clocks go forward 1 hour on Sunday 8 March at 02:00 local time (to 03:00), and go back 1 hour on Sunday 1 November at 02:00 local time (to 01:00). In 2027, clocks go forward 1 hour on Sunday 14 March at 02:00 local time (to 03:00), and go back 1 hour on Sunday 7 November at 02:00 local time (to 01:00).
What is the UTC offset in Ottawa?
Ottawa is at UTC−05:00 or UTC−04:00, depending on the time of year.
What is the time difference between Ottawa and London?
Ottawa is currently 5 hours behind London. The difference can change by an hour for a few weeks a year, when one place starts or ends daylight saving time and the other does not.
Is Ottawa on the same time as the rest of Canada?
Not everywhere. Canada has 11 time zone regions, so the time in Ottawa can differ from other parts of the country.