The left panel of the triptych carries two sets of hour lines of different colors (blue and red brick) which, on the same table, in two different sundials hours repeatedly: the watch to italic hour and clock in Babylonian time, using the same "Gnomon" (the rod that, with the pinnacle of his shadow cast on the Sundial, marks the hours).
Babylonian time owes its name to the fact that the ancient Babylonians had the 24 hours of the day to start since dawn. It remained in use in many Germanic countries and Europe.
The italic hour instead, is characterised by the fact that the day was measured in hours from sunset 24 hours of the day and at the same time portraying the coming day 0 hours.
The italic hour has long been used in the peninsula so that Goethe he lamented being unable to understand its essence.

On the left side you can read the inscription in the ancient language cimbro containing the following words: "Ich Schbaige benne de Lichte pehlmar a selten rede aber bahr" which literally means: do when light is lacking, but when I talk to say actually.
The Sundial was rebuilt following the writings of the historian Baraggiola, whom he described in his notes the existing Sundial in Asiago.