获取时间差 js

/*
*格式化时间差
*/
time 是时间差 （秒）
function diffTime(time){
    var DAY = 60*60*24;
    var HOUR = 60*60;
    var MINUTE = 60;

    if(time < 0){
        time = -time;
    }
    var day  = parseInt((time/DAY));
    var hour = parseInt((time - day * DAY)/HOUR);
    var min  = parseInt((time - day * DAY - hour * HOUR)/MINUTE);
    var second = parseInt(time - day * DAY - hour * HOUR - min * MINUTE);

    if(day > 0){
        return day + "天"  + hour + "小时";
    }
    else if(hour > 0){
        return hour + "小时" + min + "分";
    }
    else if(min > 0){
        return  min + "分" + second + "秒";
    }
    else{
        return second + '秒';
    }
}