 	public func valueInUnit(unit: TimeUnit) -> Double {
 		switch unit {
 		case .Seconds: return seconds
+		case .Minutes: return minutes
+		case .Hours:   return hours
 		}
 	}
 }

		
		switch unit {
		case .Seconds: rawValue = value
		}
	}




public enum TimeUnit: Unit {
	case Seconds
	case Minutes
	case Hours
}


