add hours to particular date iOS swift

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Solution:

func addHours(hoursToAdd: Int) -> NSDate {
        let secondsInHours: TimeInterval = Double(hoursToAdd) * 60 * 60
        let dateWithHoursAdded: NSDate = self.addingTimeInterval(secondsInHours)
       
        //Return Result
        return dateWithHoursAdded
    }

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