JS Date对象---计算两个时间之间的差 xxx天xxx时xxx分xxx秒

本文链接：https://blog.youkuaiyun.com/m0_49623851/article/details/121408647

本文介绍了一种使用JavaScript计算两个日期之间的时间差的方法，包括天数、小时数、分钟数和秒数，并提供了具体的代码实现。

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		var date1 = new Date('2021/11/17 16:40:43');
		var date2 = new Date();
		function bbb(date1,date2){
			var differMilliSecond = Math.abs(date1.getTime() - date2.getTime());
			var differSecond = differMilliSecond/1000;
			//相差的天数
			var day = parseInt(differSecond/60/60/24);
			//相差的小时数
			var hour = parseInt(differSecond/60/60%24);
			//相差的分钟数
			var minute = parseInt(differSecond/60%60);
		    //相差的秒数
			var second = parseInt(differSecond%60);
			
			document.write(date1 + '<br />' + date2 +'<br />两个时间相差：' 
			+ day +'天&nbsp' + hour + '时&nbsp' + minute + '分&nbsp' + second + '秒');
		}
		bbb(date1,date2);

function getDateDiff(date1, date2) {
		    var hms = date2.getTime() - date1.getTime();  //就是获取两个日期对象的毫秒差
		    var days = parseInt(hms/1000/60/60/24);
		    document.write(days + "天&nbsp;");
		    var hourInterval = hms - days*24*60*60*1000;  //剩余小时的毫秒数
		    var hours = parseInt(hourInterval/1000/60/60);
		    document.write(hours + "小时&nbsp;");
		    var minuteInterval = hourInterval - hours*60*60*1000;  //剩余分钟的毫秒数
		    var minutes = parseInt(minuteInterval/1000/60);
		    document.write(minutes + "分钟&nbsp;");
		    var secondInterval = minuteInterval - minutes*60*1000;  //剩余秒的毫秒数
		    var seconds = parseInt(secondInterval/1000);
		    document.write(seconds + "秒");
		}
		
		var date1 = new Date("2005-11-17 15:40:43");
		var date2 = new Date();
		getDateDiff(date1, date2);