How to calculate Day(s) and Hour(s) remaining in swift between two dates?

Question

I have output 2019-11-23 and today's date 2019-11-4. How do I calculate the number of days remaining for these two dates? the output should be

19d5h

score 1 · Accepted Answer · answered Nov 04 '19 at 08:16

1

Try using DateFormatter and DateComponents to get this working.

Get the Date instances from String using DateFormatter and then get day and hour components using DateComponents, i.e.

let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"

if let d1 = dateFormatter.date(from: "2019-11-23"), let d2 = dateFormatter.date(from: "2019-11-4") {
    let components = Calendar.current.dateComponents([.day, .hour], from: d2, to: d1)
    print(components.day, components.hour)
}

answered Nov 04 '19 at 08:16

PGDev

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You can remove the `hour` component in the output since it will always be 0. – Joakim Danielson Nov 04 '19 at 09:42
@JoakimDanielson Right. That's just if OP adds the hour to dates as well. Otherwise there won't be any requirement if hour. – PGDev Nov 04 '19 at 09:45
You should set date formatter locale to en_US_POSIX when using a fixed date format – Leo Dabus Nov 04 '19 at 12:39

How to calculate Day(s) and Hour(s) remaining in swift between two dates?

1 Answers1