Above the entrance of the church of San Giacomo di Rialto you can find a clock with 24 in stead of 12 hours. The clock was build in the 15th century.
At the Piazza San Marco the St Mark's Clocktower or Torre Dell' Oroloshows a beautifull astronomical clock. Showing moon phases, and also a 24 timing (in stead of 12).
See also that "4" is put as IIII and not as IV
