What is the time difference between Ottawa and London?

London is 5 hours ahead of Ottawa right now. During the year the gap varies between 4 hours and 5 hours, because the two cities change their clocks on different dates.

When is the next public holiday in Ottawa?

Christmas Day, on Friday 25 December 2026.

When do working hours in Ottawa overlap with New York and London?

New York's 09:00–17:00 overlaps Ottawa's for 8 hours today (09:00–17:00 Ottawa time); London's 09:00–17:00 overlaps Ottawa's for 3 hours today (09:00–12:00 Ottawa time).

Current Time in Ottawa, Canada — EST

UTC-05:00Standard timeAmerica/Toronto

Ottawa, Canada

12:46:57 PM

Thursday, November 5, 2026

Quick answer

The current time in Ottawa, Canada is 12:46 PM on Thursday, November 5, 2026. Ottawa is on standard time, EST (UTC-05:00); clocks go forward on 14 March 2027.

Pronunciation

Ottawa

Time facts about Ottawa

The National Research Council of Canada, headquartered in Ottawa, maintains Canada's official time using atomic clocks.Source: thecanadianencyclopedia.ca
Time zones and DST in Canada are set by provinces and territories, not by Parliament in Ottawa.Source: thecanadianencyclopedia.ca
Ottawa and Gatineau sit in different provinces but both use Eastern time with the same DST dates, so crossing the Ottawa River involves no clock change.Source: IANA tz database
Ontario's 2020 permanent-daylight-time law depends on Quebec, Ottawa's neighbour across the river, adopting the same change.Source: globalnews.ca

Time zone and daylight saving time in Ottawa

Time zone (IANA): America/Toronto
Current offset: EST (UTC-05:00)
Daylight saving: Standard time
Offsets in the next 12 months: UTC-05:00 and UTC-04:00

Next clock change: On Sunday 14 March 2027 at 02:00 local time, clocks go forward 1 hour to 03:00, from EST (UTC-05:00) to EDT (UTC-04:00).

Sun & twilight

Today

Sunrise

06:47 AM

Sunset

04:44 PM

Day length

9h 57m

Solar noon (sun highest): 11:46 AM

Daylight on the solstices

December solstice (December 21, 2026): 8h 43m
June solstice (June 21, 2027): 15h 40m

Time difference and working-hours overlap

Today's values; working day 09:00–17:00 in both places.

City	Local time	Difference	Their 09:00–17:00 in Ottawa	Overlap with Ottawa
Los Angeles	09:46	−3 h	12:00–20:00	5 h (12:00–17:00)
Chicago	11:46	−1 h	10:00–18:00	7 h (10:00–17:00)
Mexico City	11:46	−1 h	10:00–18:00	7 h (10:00–17:00)
New York	12:46	0 h	09:00–17:00	8 h (09:00–17:00)
London	17:46	+5 h	04:00–12:00	3 h (09:00–12:00)
Paris	18:46	+6 h	03:00–11:00	2 h (09:00–11:00)

Upcoming public holidays in Ottawa

In 50 days
Christmas Day
Fri, Dec 25, 2026
Public
In 51 days
Boxing Day
Sat, Dec 26, 2026
PublicRegional
In 57 days
New Year's Day
Fri, Jan 1, 2027
Public

Airports near Ottawa

Ottawa Macdonald-Cartier International Airport YOW10 km straight-line
Montreal / Pierre Elliott Trudeau International Airport YUL153 km straight-line
Quebec Jean Lesage International Airport YQB366 km straight-line

Frequently Asked Questions

Does Ottawa observe daylight saving time?: Yes. On Sunday 14 March 2027 at 02:00 local time, clocks go forward 1 hour to 03:00, from EST (UTC-05:00) to EDT (UTC-04:00).
What is the time difference between Ottawa and London?: London is 5 hours ahead of Ottawa right now. During the year the gap varies between 4 hours and 5 hours, because the two cities change their clocks on different dates.
When is the next public holiday in Ottawa?: Christmas Day, on Friday 25 December 2026.
When do working hours in Ottawa overlap with New York and London?: New York's 09:00–17:00 overlaps Ottawa's for 8 hours today (09:00–17:00 Ottawa time); London's 09:00–17:00 overlaps Ottawa's for 3 hours today (09:00–12:00 Ottawa time).

Time in other cities, compared with Ottawa

Tools

Sources

Time zone rules: IANA tz database, applied when the page is generated; the clock runs in your browser. Sun times: NOAA solar equations at 45.41°N, 75.70°W (GeoNames). Holidays: Nager.Date. Airports: OurAirports. About our sources.