how to check if time is within a specific range in swift

Question

Hi I am trying to check if the current time is within a time range, say 8:00 - 16:30. My code below shows that I can obtain the current time as a string, but I am unsure how

Answer 1

You can use the compare method from NSDate: it will return an NSComparisonResult (OrderedSame, OrderedAscending or OrderedDescending) that you can check against your start and end dates:

let dateMaker = NSDateFormatter()
dateMaker.dateFormat = "yyyy/MM/dd HH:mm:ss"
let start = dateMaker.dateFromString("2015/04/15 08:00:00")!
let end = dateMaker.dateFromString("2015/04/15 16:30:00")!

func isBetweenMyTwoDates(date: NSDate) -> Bool {
    if start.compare(date) == .OrderedAscending && end.compare(date) == .OrderedDescending {
        return true
    }
    return false
}

println(isBetweenMyTwoDates(dateMaker.dateFromString("2015/04/15 12:42:00")!)) // prints true
println(isBetweenMyTwoDates(dateMaker.dateFromString("2015/04/15 17:00:00")!)) // prints false