My only timepiece is a wall clock. One day I forgot to wind it and it stopped

Math Riddle:  My only timepiece is a wall clock. One day I forgot to wind it and it stopped. I went to visit a friend whos watch is always correct, stayed awhile, and then went home. There I made a simple calculation and set the clock right.

How did I do this even though I had no watch on me to tell me how long it took me to return from my friend’s house?

Answer:  Before I left, I wound the divider clock. At the point when I restored, the adjustment in time approached how long it took to go to my companion’s house and return, in addition to the time I spent there. In any case, I knew the last since I took a gander at my companions watch when I showed up and left.

Taking away the hour of the visit from the time I was missing from my home, and isolating by 2, I got the time it took me to get back. I added this opportunity to what my companion watch indicated when I left and set the aggregate on my divider clock.