Reference tool
Sunrise sunset calculator
Sunrise, sunset, golden hour, and day length on the local clock of any place.
Short answer
- Denver, June 21
- 14.99h
- Denver, Dec 21
- 9.35h
Looking up the local time zone…
Worked example: Denver through 2026
| Date | Sunrise | Sunset | Day length | Noon sun |
|---|---|---|---|---|
| March 20 | 7:03 AM MDT | 7:12 PM MDT | 12.15 h | 2,884.8° |
| June 21 | 5:32 AM MDT | 8:31 PM MDT | 14.99 h | 4,222.9° |
| September 22 | 6:47 AM MDT | 6:56 PM MDT | 12.15 h | 2,885.4° |
| December 21 | 7:17 AM MST | 4:38 PM MST | 9.35 h | 1,538.8° |
How to use it
- Click the map or search a place. The tool starts at New York.
- Read the card: sunrise, sunset, solar noon, and golden hour on the place's local clock, and the day length in hours.
- Add the place's UTC offset to get local clock time. For New York, subtract 5 hours in winter and 4 in summer.
- The values are for today's date on your device. Near the poles the day length can read polar day or night instead of hours.
What sunrise and sunset mean
Sunrise and sunset are the moments the top edge of the sun touches the horizon. Because the air bends light and the sun is a disk, not a point, that happens when the sun's center is about 0.833° below the horizon, the standard value NOAA also uses. Solar noon is when the sun crosses the meridian and is highest.
Golden hour here is the evening time when the sun's center sits 6° above the horizon, as SunCalc defines it, a common cue for soft light in photography.
Which clock the times use
The tool looks up the IANA time zone of the point you pick through Open-Meteo, then shows each time on that zone's clock, with daylight saving applied for today's date. The zone name appears under the card. If the lookup fails, the times fall back to UTC and the card says so.
For the offset and the next clock change of a place, use the time zone finder.
Accuracy
SunCalc implements standard astronomical formulas for the sun's position. Bigger differences from what you see come from the ground: mountains and buildings hide the sun, and unusual refraction shifts it. Near the poles the sun can stay up or down all day, and the tool then shows polar day or night instead of times. The sunrise guide has the full method.
Planning around daylight
Photographers plan around golden hour and solar noon. Hikers check sunset to be off a trail before dark. Gardeners compare day length through the year. For local clock times by month at every state capital, with daylight saving changes applied, the daylight pages are faster than converting from UTC by hand.
Questions people ask
Are the times in local time?
Yes. The tool looks up the time zone of the point you pick and shows times on that clock, with daylight saving. If the lookup fails it shows UTC and says so.
What counts as sunrise?
The moment the sun's top edge appears, when its center is about 0.833° below the horizon.
Which day is shown?
Today, from your device's date.
Sources and data as of
Data as of: computed with SunCalc for the dates shown.
- 01SunCalc library
- 02NOAA general solar position calculations (last verified 2026-09-30)
- 03Open-Meteo forecast API, timezone=auto
- 04IANA time zone database
How every number is computed: methodology. Spotted a wrong figure? Report an error.