Is there a way to set a sound on a sound machine to go off at a certain time?

My sound machine is also a digital clock and a radio and it has buttons on the top that say timer, time set, al mode, al set, a|1/a|2, sounds, and snooze/nap. Which combo of these would you press to set a sound to go off at a certain time if you can. And no I dont know where the hell the instructions are lol.