I depends upon the type of clock that we are talking about.....
Note, Solveit.....every 3 hrs, it will fall 2 hours behind....
In 6 hrs......it will be 4 hours behind
In 12 hrs.......it will be 8 hours behind
So....in 18 hours, it will be 12 hours behind.......and, as long as it's an analog clock....the clock's hands will appear to show the correct time, then !!!!
However.....if it's a digital clock......36 hours would have to elapse to show the correct hour......[ the digital clock would show AM or PM ]
