This beautiful sundial dates back to the times of king Jan III and is situated on the south wall of Wilanow Palace.
The vertical dial was designed by John Hevelius, the astronomer and Adam Adamandy Kochanski, the royal librarian, in the years of 1681-1682 and is made in stucco in the baroque style.
The hand which casts its shadow on the dial is a feather in the right hand of Chronos.