如何获得以秒为单位的两个时间戳之间的时差？
要获取两个时间戳之间的时差，请尝试运行以下代码。在这里，我们正在计算两个时间戳之间的小时，分钟和秒的总数-
示例
<html>
<head>
<title>JavaScript Dates</title>
</head>
<body>
<script>
var date1, date2;
date1 = new Date( "Jan 1, 2018 11:10:05" );
document.write(""+date1);
date2 = new Date( "Jan 1, 2018 08:15:10" );
document.write("<br>"+date2);
var res = Math.abs(date1 - date2) / 1000;
//获取两个日期之间的总天数
var days = Math.floor(res / 86400);
document.write("<br>Difference (Days): "+days);
//上班时间
var hours = Math.floor(res / 3600) % 24;
document.write("<br>Difference (Hours): "+hours);
//得到分钟
var minutes = Math.floor(res / 60) % 60;
document.write("<br>Difference (Minutes): "+minutes);
//得到秒
var seconds = res % 60;
document.write("<br>Difference (Seconds): "+seconds);
</script>
</body>
</html>输出结果
Mon Jan 01 2018 11:10:05 GMT+0530 (India Standard Time) Mon Jan 01 2018 08:15:10 GMT+0530 (India Standard Time) Difference (Days): 0 Difference (Hours): 2 Difference (Minutes): 54 Difference (Seconds): 55
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