Start Of Day / End Of Day — Swift 4
// Extension
extension Date {
var startOfDay: Date {
return Calendar.current.startOfDay(for: self)
}
var endOfDay: Date {
var components = DateComponents()
components.day = 1
components.second = -1
return Calendar.current.date(byAdding: components, to: startOfDay)!
}
var startOfMonth: Date {
let components = Calendar.current.dateComponents([.year, .month], from: startOfDay)
return Calendar.current.date(from: components)!
}
var endOfMonth: Date {
var components = DateComponents()
components.month = 1
components.second = -1
return Calendar.current.date(byAdding: components, to: startOfMonth)!
}
}
// End of day = Start of tomorrow minus 1 second
// End of month = Start of next month minus 1 second