A simple convenience extension to Int when working with TimeInterval

Int+TimeInterval.swift

import Foundation

public extension Int {
  var seconds: TimeInterval { TimeInterval(self) }
  var second: TimeInterval { seconds }
  var minutes: TimeInterval { seconds * 60 }
  var minute: TimeInterval { minutes }
  var hours: TimeInterval { minutes * 60 }
  var hour: TimeInterval { hours }
  var day: TimeInterval { hours * 24 }
  var days: TimeInterval { day }
}

Instead of writing

let eightHours = 28_800

you write:

let eightHours = 8.hours