Sun tools
Free, no-sign-up tools for planning around the sun — powered by the same engine as the SunCast app.
Sun & seasons
Explore the sun’s path, daily times and the changing year.
Sun Calculator
Search a place or move the map to see the sun’s direction and elevation at any time of day.
Sky View
Play a day in a 3D sky from any place: the Sun’s path hour by hour, which way to face and the planets after dark.
Sun Times
Sunrise, sunset, solar noon, day length, golden hour, blue hour and every twilight phase.
Sunrise & Sunset
Sunrise and sunset times, their exact compass directions and the length of the day.
Daylight Calendar
A month-by-month daylight curve with daily sunrise, sunset, solar noon, day length and change.
Solar Eclipse
Explore upcoming eclipses, map total and annular paths, and calculate what you can see from any location.
Eclipse Sky View
Watch an eclipse play out in a 3D sky from any place, with the share of the Sun covered and local times for each stage.
Home & outdoors
Understand sunlight at your window, in your garden and on your roof.
Window & Balcony Sun
Find when the sun faces your window or balcony. Choose an outward direction, explore potential exposure periods and compare sun paths across dates.
Shadow Calculator
Watch a 3D object cast a shadow. Calculate its length and direction for any place, date and time.
Solar roof calculator
Estimate monthly and yearly kWh for each roof section from its area, direction, pitch and shade.
Photography
Choose your light, plan the angle and check the forecast.
Photography Light Planner
Place your camera and subject on a map to find frontlight, sidelight and backlight periods. Explore golden hour and compare coloured sun paths for different dates.
Golden hour
Morning and evening golden hour and blue hour times, with durations — for any place and date.
Sunset forecast
Forecast photographic light quality from cloud layers, visibility, precipitation and the exact solar event.
