javascript 日期相减 返回天数 和 小时

转自：http://blog.csdn.net/minsiqiang/article/details/5181911

<SCRIPT LANGUAGE="JavaScript">

var strDate1 = "2003-06-17";

var strDate2 = "2004-09-18";

//var strDate1 = "2003-06-17 03:03:40.0";

//var strDate2 = "2004-09-18 12:03:12.0";

//strDate1=strDate1.substring(0,strDate1.lastIndexOf(".")).replace(/-/g,"/");

//strDate2=strDate2.substring(0,strDate2.lastIndexOf(".")).replace(/-/g,"/");

strDate1=strDate1.replace(/-/g,"/");

strDate2=strDate2.replace(/-/g,"/");

var date1 = Date.parse(strDate1);

var date2 = Date.parse(strDate2);

alert("strDate2与strDate1相差"+Math.ceil((date2-date1)/(24*60*60*1000))+"天")

</SCRIPT>

<SCRIPT LANGUAGE="JavaScript">

<!--

var strDate1 = "2004-09-17 03:03:00.0";

var strDate2 = "2004-09-17 04:05:00.0";

strDate1=strDate1.substring(0,strDate1.lastIndexOf(".")).replace(/-/g,"/");

strDate2=strDate2.substring(0,strDate2.lastIndexOf(".")).replace(/-/g,"/");

var date1 = Date.parse(strDate1);

var date2 = Date.parse(strDate2);

alert("strDate2与strDate1相差"+(date2-date1)/(60*60*1000)+"小时")

//-->

</SCRIPT>