user1007522 user1007522 - 7 months ago 31
iOS Question

dateFormat always returns nil

I'm getting a dateFormat from the server like this:


So I wrote a dateformatter:

private static let jsonDateFormatter: NSDateFormatter = {
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy-MM-dd'T'HH:mm:ss+SSS"
return fmt

there is still a problem because when I do
it returns nil so the dateFormat must be wrong.

I don't see the problem.


As per the Documentation given on Apple Docs here

The correct formatter for this type of Dates will be


As it is used in the give example

let RFC3339DateFormatter = NSDateFormatter()
RFC3339DateFormatter.locale = NSLocale(localeIdentifier: "en_US_POSIX")
RFC3339DateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZZ"
//RFC3339DateFormatter.timeZone = NSTimeZone(forSecondsFromGMT: 0)

/* 39 minutes and 57 seconds after the 16th hour of December 19th, 1996 with an offset of -08:00 from UTC (Pacific Standard Time) */
let string = "1996-12-19T16:39:57-08:00"
let date = RFC3339DateFormatter.dateFromString(string)