Sunrise and sunset times in Boulder

Calculate sunrise and sunset times in Boulder, day length for any day of the year.

Start typing the name of the city where you want to know the sunrise and sunset times.

Boulder — sunrise, sunset, length of day Today

Time format: 24h 12h

01:09:24AM

Tuesday, May 5, 2026

Boulder on the globe

Sunrise: 05:55:38 am
Sunset: 07:59:47 pm
Day length: 14:04:09
Sun at zenith: 12:57:43 pm
Civil dawn: 05:25:58 am
Civil dusk: 08:29:27 pm
Nautical dawn: 04:49:35 am
Nautical dusk: 09:05:51 pm
Astronomical dawn: 04:10:03 am
Astronomical dusk: 09:45:23 pm