在php中使用countdown.js的多个计时器

I have this project wherein I need to set a start button and when that start button is being triggered then it starts counting down and when the time is equal to 0 it will update the status. So I really don't know where to start it over since it is multiple data like this.

As shown above there when the start button is being triggered then the time for shiatsu will be 60 mins and it starts counting down same through with hot stone massage.

1. How can I set the time using countdown.js.

        <script type="text/javascript">
        $(function () {
            var austDay = new Date();           
          //how can i set 60 minutes time in here? should I format it like
          //austDay = new Date(austDay.getFullYear(), 12 , 0,60,0); ? 
            console.log(austDay);
            $('#defaultCountdown').countdown({until: +60});
        });
        </script>

2. How can I specify the service from my database? or when time's up how can I update the status record for a specific service?

I don't know what to do so where should I start? How to trigger the countdown event when time is up for me to be able to update the status? Please help!