Sundial   

Museo della Civiltà Contadina del Friuli Imperiale (Sundials courtyard)    

Photo n° 4

The lines of the hours, marked in white, allow for reading of the Real Local Time; the blue lines are for the Average Time of the Central European fuse.

The lemniscates (figure-eight lines) which are drawn in correspondence to every hour, permit the immediate reading of the Civil Time any day of the year.