Get the Minutes, Hours, Seconds from NSDate and NSCalendar

// Get the Gregorian calendar
NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
 
// Get the date
NSDate* now = [NSDate date];
 
// Get the hours, minutes, seconds
NSDateComponents* nowHour = [cal components:NSHourCalendarUnit fromDate:now];
NSDateComponents* nowMinute = [cal components:NSMinuteCalendarUnit fromDate:now];
NSDateComponents* nowSecond = [cal components:NSSecondCalendarUnit fromDate:now];