Sunrise and sunset times in Boulder
Calculate sunrise and sunset times in Boulder, day length for any day of the year.
Boulder — sunrise, sunset, length of day Today
Thursday,
January
29,
2026
- Sunrise
- Sunset
- Day length
- 10:04:51
- Sun at zenith
- Civil dawn
- Civil dusk
- Nautical dawn
- Nautical dusk
- Astronomical dawn
- Astronomical dusk