The same sun,
elsewhere.
The light of June 21 at 2 pm in Paris? Athens knows it twice a year. Parhélie computes the sun's exact height in every city in the world, and finds the precise dates when another city sees the same sun as yours.
Get Parhélie — €0.99One-time payment. No subscription. The app opens immediately after checkout.
Works on iPhone, Android and computers.
What Parhélie computes for you
Exact dates, not approximations
Pick a city, a date, a time — Parhélie finds, to the day, when another city
sees exactly the same sun, with observatory-grade precision (NOAA solar algorithm, ≈ 0.1°).
Zeniths, solstices, equinoxes
The two days when the sun passes directly overhead in tropical cities, each city's highest
and lowest sun of the year, and the landmarks of every year, leap years included.
The whole world
7,774 cities above 80,000 inhabitants, on every continent,
with exact time zones and automatic daylight-saving handling.
No App Store, no Play Store
After purchase, the app opens in your browser. Add it to your home screen in two taps (“Add to Home Screen” on iPhone, “Add to Home screen” on Android): it installs with its icon and then works even without a connection.
Who is it for?
For people who live far from their home town and want to know when their new city's sky matches the one back home. For travellers who choose their season by the light. For photographers, teachers, and everyone curious about the sky.