you can calculate minutes from seconds with bellow formula...
int minutes = (secondsLeft % 3600) / 60;
see the whole code for hours,minutes and seconds bellow...
int hours, minutes, seconds;
hours = secondsLeft / 3600;
minutes = (secondsLeft % 3600) / 60;
seconds = (secondsLeft %3600) % 60;
NSLog(@"\nTime is => %02d:%02d:%02d",hours,minutes,seconds);
Output is : Time is 00:00:06