What time is it in Mountain House, California?

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

Mountain House sits at 37.78°N, 121.54°W. For sunrise and sunset there — which do depend on exactly where it is, unlike the clock — see sunrise and sunset in Mountain House.

The clock says the same thing everywhere in Pacific Daylight Time, but the sun does not. Over Mountain House it is highest at 12:57 pm today — 57 minutes after clock noon.

At 121.5°W, Mountain House 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 2 minutes in Mountain House, and the day is getting shorter by 2 minutes a day. Across the year it swings 5 hours 14 minutes, from 14 hours 47 minutes at the June solstice down to 9 hours 33 minutes in December.

At 37.8°N that puts Mountain House between Kailua at 2 hours 22 minutes and Fairbanks at 18 hours 9 minutes.