Know exactly where the light will be — and the date it lines up.
Sun, moon and Milky Way on the map for any place and moment. Golden hour, blue hour, the real horizon over the ridge, the tide at sunset, eclipses to the second — then a search for the dates when everything you want happens at once.
Light today where you are
…What it does
Sun & moon on the map
Rise and set lines from your pin, thin lines for right now, a light bar for the whole day, a timeline you can play, a second pin with distance, bearing and a sightline over the terrain.
Find dates Pro
"Full moon rising within 30 minutes of sunset, over that ridge, on a weekend, at low tide." Set the conditions, search the year, jump to the match.
Eclipses
Every solar and lunar eclipse from your spot with local contact times, a simulator that shows the discs the way your viewfinder will, and the path on the map.
Terrain & horizon Pro
Trace the real skyline 60 km around the pin; the true sunset behind the ridge replaces the almanac time everywhere — rows, map lines, the printed plan.
Weather, climate & tides Pro
Cloud by layer at each sunrise and sunset, ten-year clear-sky odds, and the tide at the golden hours from the nearest NOAA station.
Milky Way, meteors & the sky dome
The galactic core and arch on the map when it's dark, moonless core windows, every major shower's peak, and a whole-sky view of the night.
Accurate enough to trust
Positions come from the same class of theory the almanacs use (VSOP87 Sun, ELP Moon with parallax) and are checked against JPL Horizons in our test suite: the Sun within one arcsecond, the Moon within ten, moonrise within the minute, eclipse contacts within seconds. The engine runs in your browser — nothing is looked up from a table someone else made.
Free tools, no account
Pricing
Free forever for the planner and every calculator. Pro ($4.99/month or $39/year) adds the search, terrain, weather, climate, tides, unlimited synced places and export — with a 14-day trial, no card. Studio for teams. Full pricing →