Running A timer when application quits

I'm new to iphone development. I want to develop a multi-timezone enabled alarm clock which can be run on iphone. But i'm not sure whether it is possible to run a timer in the background even if the application quits. If not th开发者_如何学Cen is there any other way to do that.

Looking forwadr to any kind of help.

Thanks in advance Koushik

There's no way to run anything in the background. But you could save the start date etc. on the device and read it at the next start. This is obviously not exactly what you want, because the timer could already been run out at the next start. This is your only option it seems.