One of the more comprehensive museums dedicated to horology is the Musée international d'horlogerie in La Chaux-de-Fonds (Switzerland).
The Musée d'Horlogerie du Locle is smaller but located nearby.
A sundial shows the time by displaying the position of a shadow on a flat surface.
A form of provincial, weight-driven clock originally made in the vicinity of Morbier in the Franche*-Comt region of France (Conte in the old spelling), near the Swiss frontier, from the late 17th century to the beginning of the 20th.
They are sometimes called Morez clocks or Morbier clocks, from place names in the area.
Sometimes the 12-hour clock is used orally, but only in informal circumstances.
Since there is no one-to-one equivalent of "am" and "pm" in French, context must be relied on to figure out which one is meant.