What Is the Golden Hour?
The golden hour is the period shortly after sunrise and shortly before sunset when the sun sits low in the sky — roughly between 0 and 6 degrees above the horizon — and daylight takes on a warm, golden quality. Photographers, filmmakers and painters have chased this light for centuries because it flatters almost everything it touches: skin tones glow, landscapes gain depth, and long shadows add drama that the flat light of midday can never produce.
The science is simple. When the sun is high, sunlight travels a short path through the atmosphere. When the sun is low, the same light must cross far more air, dust and water vapour. Shorter blue wavelengths scatter away (the same Rayleigh scattering that makes the sky blue), while the longer red, orange and gold wavelengths survive the journey. The result is softer, warmer and more directional light — and because the sun is near the horizon, it rakes across surfaces instead of beating down on them.
How This Golden Hour Calculator Works
GlowHour is a golden hour calculator built on real astronomy, not guesswork. Give it any latitude, longitude and date, and it computes the sun's exact position through the day using NOAA-style solar equations: the day of the year feeds a fractional-year angle, which yields the solar declination and the equation of time, which in turn give the hour angle for any chosen solar elevation. From there, sunrise, sunset, the golden-hour boundaries (6° elevation) and the blue-hour band (−4° to −6° elevation) fall out to within about a minute of official almanac values.
Everything runs as pure JavaScript inside your browser. There is no weather API to call, no sun-position API to pay for, and no account to create. That means the calculator works offline, responds instantly, and never sends your location anywhere — the coordinates you type or share from your device GPS stay on your device. If you deny location permission, just type coordinates manually or jump to a city from the preset list.
What Time Is Golden Hour Today?
As a rough rule, morning golden hour runs from sunrise until about an hour later, and evening golden hour runs from about an hour before sunset until sunset. But "about an hour" hides real variation: the exact window depends on your latitude, your longitude and the date. The only honest answer to "what time is golden hour today" is a calculated one for your exact spot — which is precisely what the tool above gives you, including a live countdown so you know whether to grab your camera now or make chai first.
Golden Hour vs Blue Hour: Know the Difference
Golden hour ends at sunset. Blue hour time begins just after: it is the window when the sun sits 4 to 6 degrees below the horizon. The sky turns a deep, saturated cobalt blue while streetlights, windows and neon are already on — a contrast no filter can fake. In the morning, blue hour runs from roughly 30 minutes before sunrise to about 15 minutes before sunrise; in the evening, from about 15 minutes after sunset to about 35 minutes after sunset. It is shorter than golden hour, so arrive early and have your composition ready.
After blue hour come the twilights. Civil twilight (sun 0–6° below horizon) still holds enough light for outdoor activity without lamps. Nautical twilight (6–12°) is when sailors could once see the horizon and the first stars together — today it is prime time for seascapes. Astronomical twilight (12–18°) is when the sky is dark enough for serious stargazing. GlowHour lists all three, morning and evening, so night photographers know exactly when the Milky Way becomes fair game.
How Long Does Golden Hour Last?
It depends on where you stand on the planet:
- Near the equator (e.g. Singapore, Quito): the sun dives almost vertically, so each golden window lasts about 50–60 minutes, all year round.
- Mid-latitudes (e.g. New York, Delhi, London): typically 60–80 minutes per window, longer in summer when the sun takes a shallow path to the horizon.
- High latitudes in summer (e.g. Reykjavik, Stockholm): the sun skims the horizon for hours — golden light can stretch to 3–4 hours around midnight.
- High latitudes in winter: the sun may never climb above 6°, turning the entire short day into one long, moody golden glow.
The 7-day planner above shows this drift in action: watch the windows slide a few minutes each day as the seasons turn.
Best Times to Shoot: A Practical Guide
Portraits: the last 30 minutes of evening golden hour give the warmest, most flattering skin tones. Put the sun behind your subject for glowing rim light and bounce a little fill into the face. Landscapes: morning golden hour usually has calmer air and fewer crowds; evening gives richer colour. Cityscapes: blue hour beats golden hour — arrive during the golden window, shoot the sunset, then stay put as the city lights switch on. Silhouettes: expose for the bright sky and let your subject go black; the 10 minutes straddling sunset are ideal.
Three habits separate good golden-hour shooters from frustrated ones. First, arrive early — the best light is often the first 15 minutes, and fumbling with a tripod then is painful. Second, stay late — the afterglow 10–20 minutes after sunset frequently outshines the sunset itself. Third, check the planner, not the sky — a calculator tells you the window days ahead, so you can be in position instead of hoping.
Golden Hour Around the World
Because golden hour is pure geometry, it behaves differently everywhere. In Mumbai in October, evening golden hour lands around 5:00–6:00 PM; in London in June it stretches from roughly 7:45 PM past 9:30 PM. Travelling east or west within one time zone shifts your windows by about 4 minutes per degree of longitude — which is why two photographers in the same time zone can have golden hours half an hour apart. The saved-places feature exists for exactly this: store every shoot location once and compare their light at a tap.
How to Use GlowHour
1. Set your location. Tap "Use my location" for GPS coordinates, pick a city, or type latitude and longitude manually. 2. Pick a date. Today is the default; choose any date to scout a future shoot. 3. Read the sky. The sun-path arc shows the whole day at a glance — drag the time slider to preview the sun's elevation and light phase at any minute. 4. Plan the week. The golden-week planner tables seven days of windows for trip planning. 5. Chase the blue. The blue hour & twilight tab lists blue windows and all three twilight bands. 6. Shoot smarter. Each light window has a tick-off checklist of shots worth attempting while the light lasts.
Times are shown in your chosen display timezone (your device timezone by default), and the math is accurate to about a minute under the standard atmospheric-refraction model — good enough to plan any shoot with confidence.