I want to make a program that play sound in every hour but im stuck.I need some help to solve the problem, and that problem is that i dont know how to tell the program to play a sound in every hour.Im trying with some compare (i set the date to an integer and compare with an other integer), but this doesent seems to work...Can anybody help?(for ex.: i want that the NSDate plays me the sound az 13:00)Many thanx