NSDateFormatter：IST无法识别

Question

NSDateFormatter无法识别IST时区。 确认以下日期

let dateString = "Jun 10, 2015 @ 12.30 AM PDT"
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MMM-dd-yyyy @ hh-mm-a-zzz"
let date = dateFormatter.dateFromString(dateString)

但无法识别IST时区的时间。

let dateString = "Jun 10, 2015 @ 12.30 AM IST"
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MMM-dd-yyyy @ hh-mm-a-zzz"
let date = dateFormatter.dateFromString(dateString)

IST时区的日期为零。

Answer 1

作为一种解决方法，这有助于：

let dateString = "Jun 10, 2015 @ 12.30 AM"
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MMM-dd-yyyy @ hh-mm-a"
dateFormatter.timeZone = NSTimeZone(abbreviation: "IST")
let date = dateFormatter.dateFromString(dateString)