Date formatter not returning date from string in app works in playground though

Question

I know these questions are asked all the time about date formatters, however the issue I have is really odd

I need to convert a simple string to date as follows

    let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MM/dd/yyyy"
let dateOfBirthString = "10/20/2002"
let dob: Date? = dateFormatter.date(from: dateOfBirthString)

This works fine in a playground but always returns nil in the app (with those exact values (albeit properties rather than hard coded strings)

Any help would be appreciated, its driving me nuts

Answer 1

extension String {

func toDateTime() -> Date {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
    dateFormatter.timeZone = TimeZone(identifier: "UTC")
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    guard let date = dateFormatter.date(from: self) else {
        preconditionFailure("Take a look to your format")
    }
    return date
}
}

try this extension

let dateOfBirthString = "10/20/2002"
let dob: Date? = dateOfBirthString.toDateTime()

use this extension like this and if you get any error then feel free to comment below