I have an iPhone 4S running IOS 6.1.3. I need a timer app that will allow me to set reoccurring interval timers. That may be an odd way to say what I mean. So, here is what I need to do: I want a timer that will go off repeatedly every 60 minutes (or any other duration I set) starting at a given time of day and ending at another time of day. I could set a 60-minute timer using the iPhone clock and then simply hit START again every time it goes off until I get to the end for that day. But, I don't want to have to do that! Does anyone know of any app that can be used to do this chore?