At noon, a sun beam through the hole, alit on the meridian strip. The iconography is complex, and was described by his Gabbiani’s pupil Hugford as Time raising up Arts and Sciences to the temple of glory and trampling Ignorance.
At midday, a sun beam pierced the hole, highlighting the central strip. The symbolic language is intricate, and was analyzed by Hugford, a student of Gabbiani, who described how Time promotes Arts and Sciences to a position of prestige while suppressing Ignorance.