What time is it in Mercer Island, Washington?

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

Mercer Island sits at 47.56°N, 122.23°W. For sunrise and sunset there — which do depend on exactly where it is, unlike the clock — see sunrise and sunset in Mercer Island.

The clock says the same thing everywhere in Pacific Daylight Time, but the sun does not. Over Mercer Island it is highest at 1:00 pm today — 60 minutes after clock noon.

At 122.2°W, Mercer Island 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 in Mercer Island, and the day is getting shorter by 3 minutes a day. Across the year it swings 7 hours 33 minutes, from 15 hours 59 minutes at the June solstice down to 8 hours 26 minutes in December.

At 47.6°N that puts Mercer Island between Kailua at 2 hours 22 minutes and Fairbanks at 18 hours 9 minutes.