http://iphonedevsdk.com/forum/iphone-sdk-development/14403-nstimer-examples.html
@interface className { NSTimer * timer; } @property (nonatomic, retain) NSTimer * timer; @end @implementation className @synthesize timer; ... -(void) applicationDidFinishLaunching : (UIApplication *) application { timer = [NSTimer scheduledTimerWithInterval: 1.0 target:self selector:@selector(targetMethod:) userInfo:nil repeats: YES]; } //define the targetmethod -(void) targetMethod: NSTimer * theTimer { NSLog(@\"Me is here at 1 minute delay\"); } .. @end