问题
I did an extension for Date that returns a formatted string:
extension Date {
var myFormattedDate : String {
let formatter = DateFormatter()
formatter.timeZone = TimeZone.current
formatter.dateFormat = "EEEE, MMMM d, y (HH:mm a)"
return formatter.string(for: self)!
}
}
On runtime, I set a breakpoint inside the myFormattedDate property.
po self printed:
2017-09-05 08:50:00 +0000
po formatter.string(for: self)! printed:
Tuesday, September 5, 2017 (11:50 AM)"
What could be the problem? Thanks!
回答1:
Printing a Date always returns an UTC time, regardless of the local time zone. Just avoid printing a Date object directly if you want to see the date with the proper time zone in your console.
来源：https://stackoverflow.com/questions/46048336/dateformatter-returns-wrong-time