Golden Hour Calculator – Find the Perfect Light for Any Shoot
The Golden Hour Calculatortells you exactly when the soft, warm, directional light that photographers and filmmakers call "magic hour" will occur at any location on Earth. Enter a latitude, longitude, and date, and the tool computes the morning and evening golden hour windows, along with the deeper blue hour that brackets them, sunrise and sunset, solar noon, and total day length — all calculated in your browser using the same solar position formulas used by professional sun-tracking software.
What Is Golden Hour?
Golden hour is the period when the sun's elevation angle is between -4° and +6° above or below the horizon. During this window, sunlight travels through more of the atmosphere than at midday, scattering blue wavelengths and letting warm red and orange tones dominate. The result is soft, diffused, directional light with long shadows and reduced contrast — ideal for portraits, landscapes, weddings, and establishing shots. Golden hour happens twice a day: once shortly after sunrise as the sun climbs through this elevation range, and once shortly before sunset as it descends back through it.
What Is Blue Hour?
Blue hour immediately follows evening golden hour and precedes morning golden hour, occurring when the sun's elevation is between -6° and -4° — below the horizon but still bright enough to illuminate the sky in a deep, saturated blue. Because ground-level scenes rely on ambient skylight rather than direct sun, blue hour is a favorite for cityscape, architectural, and long-exposure photography, where artificial lights and a vivid sky can be balanced in the same frame.
How the Calculation Works
The calculator converts your date into a Julian Day Number, then derives the sun's declination and the equation of time using the NOAA solar position algorithm (based on Jean Meeus's Astronomical Algorithms). From there it solves the standard hour-angle equation — which relates the observer's latitude, the sun's declination, and a target solar elevation — for three thresholds: +6° (the boundary between golden hour and full daylight), -4° (the boundary between golden hour and blue hour), and -6° (the boundary between blue hour and civil twilight). The resulting hour angles are converted back into local clock times using your selected UTC offset, giving the start and end of each window for both the morning and evening.
Reading Your Results
Results are grouped into a top row of core solar events — sunrise, solar noon, sunset, and day length — followed by dedicated cards for morning and evening golden hour, and, if enabled, morning and evening blue hour. A proportional timeline bar visualizes where each window falls across the 24-hour day, and if you calculate for today's date, a live countdown shows how long remains until the next golden or blue hour boundary. Toggle the twilight switch to also see civil twilight, and switch between 12-hour and 24-hour clock formats to match your preference.
Planning a Shoot at Extreme Latitudes
Near the Arctic and Antarctic Circles, the sun's elevation can remain entirely outside the golden hour or blue hour range for days or months at a time — for example during the midnight sun of a polar summer, when the sun never dips low enough, or during polar night, when it never rises high enough. In these cases the calculator clearly reports that no golden hour or blue hour occurs on the selected date, rather than showing misleading times.
Tips for Using Golden Hour Effectively
Arrive at your location at least 15–20 minutes before the calculated start time to scout compositions while the light is still building. Position your subject so the low sun rakes across the scene from the side or behind for rim lighting and long, soft shadows, and keep an eye on cloud cover — a thin layer of high clouds can extend and intensify the golden color for several extra minutes past the calculated end time. If you are shooting a multi-day trip, check golden hour times for each date individually, since the window shifts by several minutes per day depending on your latitude and the time of year.