如何计算从所选时间（小时）到给定持续时间的时间（以小时为单位）

Question

例如，如果我选择时间：下午3点和小时数：5小时，那么得到（晚上8点）作为答案＆＃34;

Answer 1

let calendar = Calendar.current
let date = calendar.date(byAdding: .hour, value: 5, to: Date())
or
let date = calendar.date(byAdding: . minute, value: 330, to: Date())

  

现在你可以得到一小时

let comp = calendar.dateComponents([.hour, .minute], from: date)
let hour = comp.hour
let minute = comp.minute

print(hour)// This is your answer.