import Foundation

extension Date {
    func format(_ format: String) -> String {
        let formatter = DateFormatter()
        formatter.locale = Locale(identifier: "en_US")
        formatter.dateFormat = format
        return formatter.string(from: self)
    }

    static func parse(dateStr: String, format: String) -> Date? {
        let formatter = DateFormatter()
        formatter.locale = Locale(identifier: "en_US")
        formatter.dateFormat = format
        return formatter.date(from: dateStr)
    }
}