第一个是类的方法实现，第二个是函数方式。推荐函数方式：

class UtcToLocal {

    static format(str) {
        return str > 9 ? str : '0' + str;
    }

    setUp(utcTime) {
        this.date = new Date(utcTime);
        this.year = this.date.getFullYear();
        this.mon = UtcToLocal.format(this.date.getMonth() + 1);
        this.day = UtcToLocal.format(this.date.getDate());
        this.hour = UtcToLocal.format(this.date.getHours());
        this.min = UtcToLocal.format(this.date.getMinutes());
        this.second = UtcToLocal.format(this.date.getSeconds());
        this.splitTime();
    }

    splitTime() {
        const localTime = `${this.year}-${this.mon}-${this.day} ${this.hour}:${this.min}:${this.second}`;
        console.log(localTime)
        return localTime;
    }
}

export default UtcToLocal;

export default function utcToLocal(utcTime) {
    if (!utcTime) {
        return;
    }
    const date = new Date(utcTime);
    const year = date.getFullYear();
    const mon = format(date.getMonth() + 1);
    const day = format(date.getDate());
    const hour = format(date.getHours());
    const min = format(date.getMinutes());
    const second = format(date.getSeconds());
    
    const localTime = `${year}-${mon}-${day} ${hour}:${min}:${second}`;
    return localTime;
}

function format(str) {
    return str > 9 ? str : '0' + str;
}

第三个是使用moment.js

moment.utc(commonOne.valid_receive_end_time).local().format('YYYY-MM-DD hh:mm:ss')