I would like to make an alarm clock that goes off at multiple times in Excel.

I have a function that makes the sound already, and accepts conditions such as A=B. So that is out of the way.

I would like (lets say column A) to have all the times I want it to ring. It could look like this:

10:30
10:31
10:33
10:35

Then (I think) I need a cell that keeps a clock. If clock = any of A, then alarm. I can do this by setting Column B to (If ClockCell = A) and extend it all the way down. Is this a good (simple) way to do it?

Thanks!