Xcode swift am/pm time to 24 hour format

Question

I am trying to convert a am/pm format time to a 24 hour format time

6:35 PM to 18:35

I tried this piece of code on playground but it doesnt

Answer 1

Swift version 3.0.2 , Xcode Version 8.2.1 (8C1002) (12 hr format ):

func getTodayString() -> String{

        let formatter = DateFormatter()
        formatter.dateFormat = "h:mm:ss a "
        formatter.amSymbol = "AM"
        formatter.pmSymbol = "PM"

        let currentDateStr = formatter.string(from: Date())
        print(currentDateStr)
        return currentDateStr 
}

OUTPUT : 12:41:42 AM

Feel free to comment. Thanks