How to handle 12 hours Format?

Hi,

My Code to get Local Time From UTC:

func getLocalTimeFromUTC(dateString: String) -> (String,String){

let dateFormatter = DateFormatter()

dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"

dateFormatter.timeZone = TimeZone(abbreviation: "UTC")

let dt = dateFormatter.date(from: dateString)

dateFormatter.timeZone = TimeZone.current

dateFormatter.dateFormat = "dd/MM/yyyy HH:mm:ss"

let finalDate = dateFormatter.string(from: dt!)

let finalDateArr = finalDate.components(separatedBy: " ")

return (finalDateArr[0] , finalDateArr[1])

}

If the time format is 24 hours in my iPhone, no problem in the above code.

But when i change the time format from 24 hours to 12 hours in my iPhone, dt is nil.

How to handle this?