gistfile1.txt

import Foundation

Date.timeIntervalSinceReferenceDate
Date.timeIntervalBetween1970AndReferenceDate
Date().timeIntervalSince1970
Date().timeIntervalSinceReferenceDate
Date().addingTimeInterval(-Date().timeIntervalSinceReferenceDate)
978307200 / 60 / 60 / 24 / 365

print(String(554378506, radix: 2))
print(String(1532686820, radix: 2))
1532686820

let date = Date()
print(date.timeIntervalSinceReferenceDate)
print(Date().addingTimeInterval(0.000_000_001).timeIntervalSinceReferenceDate)
print(pow(2.0, -23.0))