将 ISO8601 字符串转换为日期

• Convert the ISO8601 string to date

  let isoDate = "2016-04-14T10:44:00+0000"
  
  let dateFormatter = DateFormatter()
  dateFormatter.locale = Locale(identifier: "en_US_POSIX") // set locale to reliable US_POSIX
  dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ"
  let date = dateFormatter.date(from:isoDate)!
  

• 从日期中获取年、月、日和小时的日期组件

• Get the date components for year, month, day and hour from the date

  let calendar = Calendar.current
  let components = calendar.dateComponents([.year, .month, .day, .hour], from: date)
  

• 最后创建一个新的Date对象并去掉分​​秒

  let finalDate = calendar.date(from:components)
  

还要考虑 iOS 10/macOS 12 中引入的便利格式化程序 ISO8601DateFormatter:

Consider also the convenience formatter ISO8601DateFormatter introduced in iOS 10 / macOS 12:

let isoDate = "2016-04-14T10:44:00+0000"

let dateFormatter = ISO8601DateFormatter()
let date = dateFormatter.date(from:isoDate)!