Tick timer in Objective C / iPhone?
13956
How do I use NSTimer?
99208
Comparing the time of two NSDates, ignoring the date component
84551
How can you rotate text for UIButton and UILabel in Objective-C?
48718
What kind of logarithm functions / methods are available in objective-c / cocoa-touch?
35759
How to make your iPhone beep every hour?
8514
iPhone: Detecting user inactivity/idle time since last screen touch
85014
Changing the interval of SetInterval while it's running
66727
Keep iphone active while running program
106379
NSTimer timerWithTimeInterval: not working
93225
How to generate a 555 fixed time delay even if trigger button is held on?
75385
How can I implement Apple's "Snooze" functionality in their Clock app?
9595
How do you add a timer to a C# console application
82818
iOS Run Code Once a Day
24198
How to have an event occur after x seconds?
14572
How can I make a time delay in Python?
142341
Environment.TickCount vs DateTime.Now
96659
How can I view the time of a text message in iOS 7?