Interestingly, the simplest clock shows solar time — not local. But the clock on the wall of Moscow State University shows the correct, local time.

Only one thing remains a mystery: who, when and why put the clock on the wall? Maybe it was the entertainment of local students or their teacher, or maybe they were someone's thesis and stayed on the wall forever? It is likely that there will be someone who will remember where they came from.

Meanwhile, there is information that during the restoration, the hands of the clock are not quite connected correctly: now they show inaccurate time.