Your files stay on your device Golden hour and blue hour times When the golden hour and blue hour start and end, for photographers. golden +6°…−4° · blue −6°…−4° apparent altitude · 1900-2100CityCustom coordinatesSearch cities The default city is chosen after the page loads in your browser. Datedate set after load - Golden hour: the sun’s apparent altitude between −4° and +6°. Blue hour: between −6° and −4°. These are the photographic conventions this tool uses: other sites draw the lines slightly differently, so the boundaries are printed on every window. - Altitude is apparent (refraction included), measured by scanning SunCalc’s own sun position and refining each crossing to the second. Civil twilight in the sunrise table uses the geometric −6° convention, so the two can differ by a few minutes, both are honest, they define different things. - Windows the day cannot bound. Polar day, polar night, or a sun that never leaves a band all render as unbounded with a note, never as fake edges. City list curated from GeoNames (geonames.org, cities500 database, CC BY 4.0), snapshot 2026-08-24, bounded to 151 major cities across six regions. Coordinates rounded to 2 decimals; ids are product slugs, not GeoNames ids. Paste, drop, or type to begin. Everything stays on this device. More sun & moon tools - Sunrise & sunset (/sky/sunrise-sunset) - Moon phase (/sky/moon-phase) All sun & moon tools (/sky) Canonical HTML: https://nutter.tools/sky/golden-hour/ Markdown version: https://nutter.tools/sky/golden-hour/index.md Plain-text version: https://nutter.tools/sky/golden-hour/index.txt Agent index: https://nutter.tools/llms.txt