<script>
    /*時間外掛*/
    var startTime =laydate.render({
        elem: '#startTime',
        type: 'date',
//        min: now,
        max: '2035-12-31 12:30:00',
        calendar: true,
        lang: 'ch',
        done: function(value, date, endDate) {
            endLayDate.config.min = {
                year: date.year,
                month: date.month - 1,
                date: date.date,
               /* hours: date.hours,
                minutes: date.minutes,
                seconds: date.seconds +1*/
            };
//      
        },
    });
    /*時間外掛*/
    var endLayDate = laydate.render({
        elem: '#endTime',
        type: 'date',
        max: '2035-12-31 12:30:00',
        btns: ['clear', 'confirm'],  //clear、now、confirm
        done: function(value, date, endDate) {
            startTime.config.max = {
                year: date.year,
                month: date.month - 1,
                date: date.date,
              /*  hours: date.hours,
                minutes: date.minutes,
                seconds: date.seconds -1*/
            };
          
        },
    });
    $(".btn").click(function () {
     
        console.log($('#startTime').val())
        console.log($("#endTime").val())
    })
</script>

HTML

<div class="btn">查詢</div>
日期時間:<input type="text" id="startTime" placeholder='開始時間' value="">
<input type="text" id="endTime" placeholder='結束時間' value="">