Swift String value converted into strange Date value [duplicate] - swift

Question

This question already has answers here:
What is happening to the year?
(1 answer)
Difference between 'YYYY' and 'yyyy' in NSDateFormatter
(4 answers)
Closed 1 year ago.
extension Date {
func toString() -> String {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMMM dd, Y (E)"
dateFormatter.timeZone = TimeZone(identifier: "UTC")
return dateFormatter.string(from: self)
}
}
extension String {
func toDate() -> Date {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMMM dd, Y (E)"
dateFormatter.timeZone = TimeZone(identifier: "UTC")
return dateFormatter.date(from: self)!
}
}
That is my code.
I want to convert my string value into a right date value. The results i’m getting are totally different form what i want.
Here is an example:
String : September 09, 2021 (Thu)
Converted Date : 2020-12-24 00:00:00 +0000
I want it to be like this:
Converted Date : September 09, 2021 (Thu) (or 2021-09-09 00:00:00 +0000)

Answer 1

Can you change
dateFormatter.dateFormat = "MMMM dd, Y (E)"
To:
dateFormatter.dateFormat = "MMMM dd, yyyy (E)"
You pass the full year in String: September 09, 2021 (Thu) so you need to get yyyy to the right way.
extension String {
func toDate() -> Date {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMMM dd, yyyy (E)"
dateFormatter.timeZone = TimeZone(identifier: "UTC")
return dateFormatter.date(from: self)!
}
}

Answer 2

here you can do what you want:
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMM dd,yyyy (E)" // here is your foramt
dateFormatter.timeZone = TimeZone(identifier: "UTC")
guard let date = dateFormatter.date(from: "September 09, 2021 (Thu)") else {
fatalError()
}
print(date) // output: 2021-09-09 00:00:00 +0000
Note that, the time zone which you choosed, should matched to your device time zone.

Answer 3

Replace Your Function with Following Code
extension Date {
func toString() -> String {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMMM dd, yyyy (E)"
dateFormatter.timeZone = TimeZone(identifier: "UTC")
return dateFormatter.string(from: self)
}
}
extension String {
func toDate() -> Date {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMM dd,yyyy (E)"
dateFormatter.timeZone = TimeZone(identifier: "UTC")
return dateFormatter.date(from: self)!
}
}
There was slight variance of in your dateFormat in your toDate() Function
Replaced MMM from MMMM
Replaced yyyy from Y
I don't know why it was showing different date but now it should work😅