Sunrise & Sunset Calculator
Get accurate sunrise, sunset, solar noon and day length for any location and date. Uses browser geolocation or enter coordinates manually. Free, no uploads.
How Sunrise & Sunset Times Are Calculated
This tool uses the NOAA solar position algorithm (based on astronomical equations) to compute the Sun's position for any latitude, longitude and date. It calculates when the Sun's upper limb reaches −0.833° (sunrise/sunset standard refraction), −6° (civil twilight), and ±1° above the horizon (golden hour).
Solar Events Reference
| Event | Sun Angle | Description |
|---|---|---|
| Astronomical Dawn/Dusk | −18° | First/last hint of light |
| Nautical Dawn/Dusk | −12° | Horizon visible at sea |
| Civil Dawn/Dusk | −6° | Enough light for outdoor work |
| Sunrise/Sunset | −0.833° | Upper limb of Sun at horizon |
| Golden Hour | 0° – 6° | Warm, soft photography light |
| Solar Noon | Max altitude | Sun at highest point |
Polar Regions
At high latitudes, the Sun may not rise at all (polar night) or may not set (midnight sun). In these cases the tool will display a message rather than times.
Practical Uses for Sunrise & Sunset Times
- Photography and filmmaking — plan outdoor shoots around golden hour and blue hour for the best natural light. Golden hour begins at sunrise and ends roughly 1 hour after; blue hour occurs when the Sun is 4–8° below the horizon.
- Gardening and agriculture — calculate daily sunlight hours for planting decisions, especially for crops or plants with minimum light requirements.
- Religious observance — many faiths tie prayers, fasting periods (e.g. Ramadan) and ceremonies to precise sunrise and sunset times.
- Solar energy planning — estimate peak generation hours for solar panel output calculations.
- Outdoor activities — plan hikes, trail runs or cycling routes to avoid being out after dark.
- Wildlife observation — many animals are most active at dawn and dusk; knowing exact times helps plan observation sessions.
Why Sunrise Times Change Throughout the Year
The Earth's axial tilt (23.5°) means the Sun rises at a different azimuth (compass direction) and at a different time each day of the year. In the Northern Hemisphere, days are shortest around the winter solstice (December 21) and longest around the summer solstice (June 21). At the equator, day length is close to 12 hours year-round. The further from the equator you are, the more dramatic the seasonal variation in sunrise and sunset times.