What time is it in Ottawa, Illinois?

Ottawa is currently on daylight saving time. The next change is Sunday, November 1, 2026, when 2:00 am becomes 1:00 am local time.

Ottawa sits at 41.35°N, 88.82°W. For sunrise and sunset there — which do depend on exactly where it is, unlike the clock — see sunrise and sunset in Ottawa.

The clock says the same thing everywhere in Central Daylight Time, but the sun does not. Over Ottawa it is highest at 12:46 pm today — 46 minutes after clock noon.

At 88.8°W, Ottawa sits well toward the western edge of its zone, which is why the sun stays up later here than the clock suggests. Daylight saving adds another hour on top until the clocks change.

Today runs 12 hours 1 minute in Ottawa, and the day is getting shorter by 3 minutes a day. Across the year it swings 5 hours 59 minutes, from 15 hours 10 minutes at the June solstice down to 9 hours 11 minutes in December.

At 41.4°N that puts Ottawa between Kailua at 2 hours 22 minutes and Fairbanks at 18 hours 9 minutes.