Daylight hours in Ottawa today

Ottawa lies at 45°N. In Ottawa, day length ranges from 8h 43m in winter to 15h 40m in summer — a swing of about 6h 58m.

Solar noon — the moment the sun is highest — falls at 12:48 in Ottawa, 48 minutes after the clock says 12. The gap comes from the city's longitude within its timezone, the equation of time, and summer time where it applies. At midday the sun currently stands 32.5° above the horizon in Ottawa. Over the year the midday sun ranges from 21.1° at the winter solstice to 68.0° at the summer solstice.

Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for Ottawa.

The longest day in Ottawa is around 15h 40m (around June 21). The shortest is around 8h 43m (around December 21). Days are currently getting shorter — losing about 3 minutes per day.