function aa(a,b){
console.log(111,a,b)
var nd = new Date(Date.parse(a.replace(/-/g,"/"))); //改为标准格式:2016/04/05 09:29:15
nd = nd.valueOf(); //转换为毫秒数
nd = nd + Number(b)
nd = new Date(nd);
var y = nd.getFullYear();
var m = nd.getMonth()+1;
var d = nd.getDate();
var hh = nd.getHours();
var mm = nd.getMinutes();
var ss = nd.getSeconds();
if(m <= 9) m = "0"+m;
if(d <= 9) d = "0"+d;
if(hh<= 9) hh = "0"+hh;
if(mm<= 9) mm = "0"+mm;
if(ss<= 9) ss = "0"+ss;
var date = y+"-"+m+"-"+d+" "+hh+":"+mm+":"+ss;
return date; //结束时间 2016-04-07 13:34:15
};
console.log(aa('2020-11-23 00:00:00',60*1000))
参考地址: https://blog.csdn.net/qq_30051139/article/details/51062495