let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd"
let victoryDate1 = formatter.date(from: "1945-05-09")!


let calendar = Calendar.current
let victoryDate2 = (calendar as NSCalendar)
    .date(era: 1, year: 1945, month: 5, day: 9,
    hour: 0, minute: 0, second: 0, nanosecond: 0)!

print("victoryDate1 is \(victoryDate1)")
print("victoryDate2 is \(victoryDate2)")