DateFormatter | Swift Programming Tutorial | Absolute Beginner
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We will cover DateFormatter in this tutorial :-
In Swift, DateFormatter is a class that allows you to convert between Date objects and string representations of dates. It provides a way to format and parse dates according to a specified format string
This is the function to convert string to Date.
func convertStringtoDate(strDate: String) {
let dateFormatter = DateFormatter()
dateFormatter.locale = Locale(identifier: "en_US_POSIX") // set locale to reliable US_POSIX
dateFormatter.dateFormat = "yyyy-MM-dd hh:mm a"
if let date = dateFormatter.date(from:strDate) {
dateFormatter.dateFormat = "dd-MM-yyyy"
self.lblGlobalDateTime.text = “UTC Time = \(date)"
self.lblLocalDateTime.text = "Local Time = \(date.toLocalTime())"
print("datedate=", dateFormatter.string(from: date.toLocalTime()))
}
}
This is the extension used to get Local and UTC Time
extension Date {
func toUTCTime() - Date {
let timezone = TimeZone.current
let seconds = -TimeInterval(timezone.secondsFromGMT(for: self))
return Date(timeInterval: seconds, since: self)
}
// Convert UTC (or GMT) to local time
func toLocalTime() - Date {
let timezone = TimeZone.current
let seconds = TimeInterval(timezone.secondsFromGMT(for: self))
return Date(timeInterval: seconds, since: self)
}
}
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