var starttime_text = $(endtime).parent().prev("td").find("input[name='Start_Time_ZhuSu']").val(); var endtime_text = $(endtime).val(); starttime_text = new Date(starttime_text.replace('-', '/')); endtime_text = new Date(endtime_text.replace('-', '/')); var Hour = (endtime_text - starttime_text) / 1000 / 3600; var Day = Math.floor(Hour / 24); var LastHour = Hour - Day * 24;
Date对象相减后就是时间差了 只不过是毫秒为单位的
自己转换成想要的格式
var endtime_text = $(endtime).val();
starttime_text = new Date(starttime_text.replace('-', '/'));
endtime_text = new Date(endtime_text.replace('-', '/'));
var Hour = (endtime_text - starttime_text) / 1000 / 3600;
var Day = Math.floor(Hour / 24);
var LastHour = Hour - Day * 24;
<body>
请输入开始日期:<input type="text" id="ksDate" onChange="doSum()" />
请输入结束日期:<input type="text" id="jsDate" disabled onChange="doSum()" />
相差天数:<input type="text" id="Result" readonly />
<script type="text/javascript">
function $(id){
return document.getElementById(id);
}
function doSum(){
var ks = $("ksDate");
var js = $("jsDate");
if(!/GMT/gi.test(new Date(ks.value))){
alert("请输入有效的日期!");
ks.focus();
js.disabled = true;
$("Result").value = "";
}else{
js.disabled = false;
if(js.value != ""){
if(!/GMT/gi.test(new Date(js.value))){
alert("请输入有效的日期!");
js.focus();
}else{
Date.prototype.diff = function(date){
return (this.getTime() - date.getTime())/(24 * 60 * 60 * 1000);
}
$("Result").value = new Date(js.value).diff(new Date(ks.value));
}
}
}
}
</script>
</body>