How to convert 42 seconds to hours?
We know (by definition) that:
We can set up a proportion to solve for the number of hours.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 hour is equal to 85.7142857142857 times 42 seconds.
It can also be expressed as: 42 seconds is equal to hours.
An approximate numerical result would be: forty-two seconds is about zero point zero one hours, or alternatively, a hour is about eighty-five point seven zero times forty-two seconds.
 The precision is 15 significant digits (fourteen digits to the right of the decimal point).Results may contain small errors due to the use of floating point arithmetic.