Date formatting in Swift that supports iOS 13+ - ios

Question

I bet this is simple. I'm trying in Xcode playgrounds to play with getting a string date
let string = "2022-11-27 00:00:00 +0000"
and converting that into a Date object that's formatted like DD-MM-YYYY
func airdateFormat(_ key: String) -> Date? {
let expectedFormat = Date().formatted(.dateTime.day().month(.wide).year())
let date = try! Date(strategy: expectedFormat)
return date
}
I also tried
func airdateFormat(_ key: String) -> Date? {
guard let dateString = self[key] as? String else { return nil }
let dateFormatted = DateFormatter.dateFormat(fromTemplate: "MM-DD-YYYY", options: Int, locale: Locale?)
return dateFormatted().date(from: dateString)
}
}
I'm parsing this Date string from json hence the guard/else statement

Answer 1

You need to use a format that matches your input to parse the string to a Date
If you want to use the DateFormatter
let string = "2022-11-27 12:34:56 +0000"
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd HH:mm:ss Z"
let date = formatter.date(from: string)
and for recent OS versions you use a FormatStyle
let formatStyle = Date.FormatStyle()
.year(.defaultDigits)
.month(.twoDigits)
.day(.twoDigits)
.hour()
.minute()
.second()
.timeZone()
let date = try formatStyle.parse(string)