Swift 3 human-readable Date Interval

humanReadableInterval.swift

class HumanTimeInterval{
    // inspired by https://gist.github.com/skreutzberger/9122ac3683f3354a7e24
    static func relativeDateInterval(date: Date) -> String? {
        let formatter = DateComponentsFormatter()
        formatter.unitsStyle = .abbreviated
        formatter.includesApproximationPhrase = false
        formatter.includesTimeRemainingPhrase = false
        formatter.allowedUnits = [.year, .month, .weekOfMonth, .day, .hour, .minute, .second]
        formatter.maximumUnitCount = 2
        
        return formatter.string(from: date, to: Date())
    }
}


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// Example
var date = Date(timeIntervalSince1970: 1522754818)
let str = HumanTimeInterval.relativeDateInterval(date: date)
print(str)