Birding Hour Calculator

Sunrise, sunset, twilight, and the dawn chorus window for the next seven days. Birds are most active in the first hour after sunrise — now you'll know exactly when to be out.

Next six days

Dawn chorus window — 30 min before sunrise until 60 min after. Songbird activity peaks here, especially in spring and early summer on still mornings. Arrive 15 min early so you're settled before it starts.

Evening window — 60 min before sunset until civil dusk. Second best for activity: raptors returning to roost, crepuscular species, and sunset waterbird flights.

Twilight phases — civil (sun 6° below horizon), nautical (12°), astronomical (18°). All times shown in this device's local timezone. Solar positions via the NOAA algorithm.