What time is it in Rancho Cucamonga, California?

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

Rancho Cucamonga sits at 34.13°N, 117.57°W. For sunrise and sunset there — which do depend on exactly where it is, unlike the clock — see sunrise and sunset in Rancho Cucamonga.

The clock says the same thing everywhere in Pacific Daylight Time, but the sun does not. Over Rancho Cucamonga it is highest at 12:41 pm today — 41 minutes after clock noon.

At 117.6°W, Rancho Cucamonga sits comfortably inside its zone. Daylight saving adds another hour on top until the clocks change.

Today runs 12 hours 2 minutes in Rancho Cucamonga, and the day is getting shorter by 2 minutes a day. Across the year it swings 4 hours 33 minutes, from 14 hours 26 minutes at the June solstice down to 9 hours 52 minutes in December.

At 34.1°N that puts Rancho Cucamonga between Kailua at 2 hours 22 minutes and Fairbanks at 18 hours 9 minutes.