Sunrise Sunset Calculator
Calculate sunrise, sunset, golden hour, blue hour and twilight times for any location on Earth.
How Sunrise and Sunset Are Calculated
Sunrise and sunset times are determined by the position of the Sun relative to the horizon at any given location on Earth. The calculation involves the Sun's declination (its angle relative to the equatorial plane), the observer's latitude, and the equation of time which accounts for Earth's elliptical orbit and axial tilt.
Golden Hour for Photography
The "golden hour" occurs roughly in the first hour after sunrise and the last hour before sunset, when sunlight travels through more atmosphere and takes on a warm, golden tone. Photographers prize this light for its soft quality and long shadows. This calculator highlights the exact golden hour windows for your location.
Blue Hour
The "blue hour" happens during civil twilight — just before sunrise and just after sunset — when the sky takes on a deep blue tone. It typically lasts 20-30 minutes and is prized by urban and landscape photographers for its moody, ethereal quality.
Twilight Types
Civil twilight (Sun 0-6 degrees below horizon) provides enough light for outdoor activities without artificial lighting. Nautical twilight (6-12 degrees) is when the horizon is still visible at sea. Astronomical twilight (12-18 degrees) is when the sky becomes fully dark for stargazing.
Seasonal Changes
Day length varies dramatically with latitude and season. At the equator, days are nearly 12 hours year-round. At 60 degrees latitude, days range from about 6 hours in winter to 18 hours in summer. Above the Arctic and Antarctic circles, the Sun can stay above or below the horizon for 24 hours around the solstices.
Planning Around Daylight
For outdoor activities, knowing exact sunrise and sunset times helps you plan safe hiking schedules, set up camp before dark, time photography sessions, and maximize productive daylight hours. Always add a safety margin — plan to finish trail activities at least an hour before sunset.
Frequently Asked Questions
How accurate is this sunrise sunset calculator?
This calculator uses standard astronomical formulas and is accurate to within 1-2 minutes for most locations. Actual times may vary slightly due to atmospheric refraction, elevation and local terrain features like mountains.
What is the golden hour?
The golden hour is the period shortly after sunrise and before sunset when sunlight is warm, soft and directional. It typically lasts 30-60 minutes depending on latitude and season. Photographers and filmmakers consider it the best natural lighting.
Why do sunrise and sunset times change throughout the year?
Earth tilted axis (23.5 degrees) causes the Sun apparent path across the sky to change with the seasons. In summer, the Sun is higher and days are longer. In winter, the Sun is lower and days are shorter. The effect is more dramatic at higher latitudes.
What is civil twilight?
Civil twilight is the period when the Sun is 0 to 6 degrees below the horizon. There is enough natural light for most outdoor activities without artificial lighting. It occurs before sunrise (dawn) and after sunset (dusk).
Does this work for any location in the world?
Yes. Enter any latitude and longitude or select from the built-in city list. The calculator works for all locations from the equator to the poles, including extreme cases like midnight sun and polar night.