【JS】时间对比函数

time-diff.js

//Get days and other datetime
//diffrence two datetime
// date1 :更早的日期 小的日期
// date2 :后面的日期 大的日期
//  返回两个时间差的天数小时数分数秒数和毫秒数
function DiffLong(datestr1,datestr2)
{
    var date1 = new Date(Date.parse(datestr1));
    var date2 = new Date(Date.parse(datestr2));
  var datetimeTemp;
  var isLater = true;
  
  if(date1.getTime() > date2.getTime())
   {
    isLater = false;
    datetimeTemp = date1;
    date1 = date2;
    date2 = datetimeTemp;
   }
      
   difference= date2.getTime() - date1.getTime();
   thisdays = Math.floor(difference /(1000* 60 * 60*24));

   difference = difference - thisdays * (1000*60*60*24);
   thishours = Math.floor(difference/(1000* 60*60));

   difference = difference - thishours * (1000*60*60);
   thisminutes = Math.floor(difference/(1000* 60));
   
    difference = difference - thisminutes * (1000*60);
    thisseconds = Math.floor(difference/1000);

    difference = difference - thisseconds * 1000;
    thismillseconds = difference;

   //document.write(date1 + 'only  ' + thisdays + '  days until '+  date2 +'<P>');
   //document.write(date1 + 'only  ' + thishours + '  hours until '+  date2 +'<P>');
   //document.write(date1 + 'only  ' + thisminutes + '  minutes until '+  date2 +'<P>');
   //document.write(date1 + 'only  ' + thisseconds + '  seconds until '+  date2 +'<P>');
   //document.write(date1 + 'only  ' + thismillseconds + '  millisconds until '+  date2 +'<P>');
       
   var strRet = thisdays + ' Days  ' + thishours + ' hours  ' +thisminutes + ' minutes  ' +  thisseconds + ' seconds ' + thismillseconds + '  milliseconds';

 return strRet;
}

DiffLong('2013-09-24 00:00', '2013-09-25 00:00')