Get current date in milliseconds
There are several ways of doing this, although my personal favorite is:
CFAbsoluteTime timeInSeconds = CFAbsoluteTimeGetCurrent();You can read more about this method here. You can also create a NSDate object and get time by calling timeIntervalSince1970 which returns the seconds since 1/1/1970:
NSTimeInterval timeInSeconds = [[NSDate date] timeIntervalSince1970];And in Swift:
let timeInSeconds: TimeInterval = Date().timeIntervalSince1970
Casting the NSTimeInterval directly to a long overflowed for me, so instead I had to cast to a long long.
long long milliseconds = (long long)([[NSDate date] timeIntervalSince1970] * 1000.0);The result is a 13 digit timestamp as in Unix.
NSTimeInterval milisecondedDate = ([[NSDate date] timeIntervalSince1970] * 1000);