Duration(Duration)

{
    "nano": 0,
    "negative": true,
    "seconds": 0,
    "units": [
        {
            "dateBased": true,
            "duration": {
                "nano": 0,
                "negative": true,
                "seconds": 0,
                "units": [],
                "zero": true
            },
            "durationEstimated": true,
            "timeBased": true
        }
    ],
    "zero": true
}