In Ferde Rusana Street 32, on the south facade of the house of the Idžojtić family. It was installed in August 2011, on the occasion of the City Day celebration. It was painted by prof. Roko Idžojtić according to the artistic solution of his mother and painter Bernarda. The number 2011 is written in Roman numerals above the gnomon, and "Ars longa, vita brevis" is written in Latin below the hour scale. Measuring the azimuth of the wall, calculating the elements and installing the gnomon was done by prof. Zlatko Kovačević.