What time is it in Mount Prospect, Illinois?

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

Mount Prospect sits at 42.06°N, 87.94°W. For sunrise and sunset there — which do depend on exactly where it is, unlike the clock — see sunrise and sunset in Mount Prospect.

The clock says the same thing everywhere in Central Daylight Time, but the sun does not. Over Mount Prospect it is highest at 12:43 pm today — 43 minutes after clock noon.

At 87.9°W, Mount Prospect sits comfortably inside its zone. Daylight saving adds another hour on top until the clocks change.

Today runs 12 hours 1 minute in Mount Prospect, and the day is getting shorter by 3 minutes a day. Across the year it swings 6 hours 9 minutes, from 15 hours 15 minutes at the June solstice down to 9 hours 6 minutes in December.

At 42.1°N that puts Mount Prospect between Kailua at 2 hours 22 minutes and Fairbanks at 18 hours 9 minutes.