Js日期轉換

function dateToStr(datetime){
var year = datetime.getFullYear();
var month = datetime.getMonth()+1;//js從0開始取
var date = datetime.getDate();
var hour = datetime.getHours();
var minutes = datetime.getMinutes();
var second = datetime.getSeconds();

if(month<10){
month = "0" + month;
}
if(date<10){
date = "0" + date;
}
if(hour <10){
hour = "0" + hour;
}
if(minutes <10){
minutes = "0" + minutes;
}
if(second <10){
second = "0" + second ;
}

var time = year+"-"+month+"-"+date+" "+hour+":"+minutes+":"+second; //2009-06-12 17:18:05
// alert(time);
return time;
}