//日期转时间戳
function transdate(time){
    var date = new Date();
    date.setFullYear(time.substring(0, 4));
    date.setMonth(time.substring(5, 7) - 1);
    date.setDate(time.substring(8, 10));
    date.setHours(time.substring(11, 13));
    date.setMinutes(time.substring(14, 16));
    date.setSeconds(time.substring(17, 19));
    return Date.parse(date) / 1000;
}
console.log(transdate("2018-05-28 23:24:12"));

运行结果

1527521052