This function takes two arguments. The first argument is a time value, the second is an integer value. The function increments the hours by the second argument and returns the time value for the same minute and seconds but some hours later or sooner in case the second argument is negative.

This function is very simple from the arithmetic's point of view, because it simply adds 3600 times the second argument to the first argument and returns the result.

[<<<] [>>>]