Random Fridays: Serene Hours

Serene hours

Serene hours

The Latin on this sundial (“horas non numero nisi serenas”) translates variously as “I count only the hours that are serene / sunny / summery / tranquil”. (according to various websites) This poor sundial has no gnomon so alas is not counting any hours at all. Isn’t “gnomon” a wonderful word? I had no idea what the name is for the part of a sundial that casts the shadow.