PROBLEM TO BE SOLVED: To provide a method for simply and reliably display the date of the year.
SOLUTION: The number of a numerical position of 1 and the number of a numerical position of 10 are arranged on two independent display runners, thus automatically displaying entire days from March 1 to February 28 or 29, and hence selectively putting the display runner with the numerical position of 1 and the numerical position of 10 forward by one step per one day without any compensation.

Inventors: GABATHULER JACQUES; JACOT CEDRIC