Couldn't convert date string from server to Date type using dateformatter

Question

I have tried many questions from stack overflow, but couldn't find a proper solution.

I have tried the below code, but it returns nil

let datestring = "2021-04-23T00:00:00.000000Z" // date from server
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
let date = formatter.date(from: datestring) // getting nil here