在 JavaScript 中将 Python UTC 时间戳转换为本地时间

Question

我正在尝试将使用 python 生成的 UTC 时间戳转换为连接客户端的本地时间。但是，时间永远不会正确转换。

Python

import time, datetime


utc_time = datetime.datetime.utcnow()
utc_time = int(time.mktime(utc_time.timetuple())) * 1000

JavaScript

function Time(time) {
    var month = {}
    month[0] = "Jan";
    month[1] = "Feb";
    month[2] = "Mar";
    month[3] = "Apr";
    month[4] = "May";
    month[5] = "Jun";
    month[6] = "Jul";
    month[7] = "Aug";
    month[8] = "Sept";
    month[9] = "Oct";
    month[10] = "Nov";
    month[11] = "Dec";
    day = {}
    day[0] = "Sunday";
    day[1] = "Monday";
    day[2] = "Tuesday";
    day[3] = "Wednesday";
    day[4] = "Thursday";
    day[5] = "Friday";
    day[6] = "Saturday";
    var b = new Date();
    var d = new Date(time);
    var c = d.getTime() + (b.getTimezoneOffset() * 60000);
    var offset = -(b.getTimezoneOffset() /60);
    var res = c + (3600000 * offset);
    d.setTime(res);
    var days = day[d.getDay()];
    var mon = d.getMonth();
    var year = d.getFullYear();
    var hour = d.getHours();
    var minute = d.getMinutes();
    var seconds = d.getSeconds();
    var date = d.getDate();
    return days + ' - ' + month[mon] + '/' + date + '/' + year + " - " + hour + ":" + minute + ":" + seconds;
}
console.log(Time(1429490580*1000)); 
// time stamp generated: Sunday - Apr/19/2015  at 4:43PM

是我的数学错误还是我在 python 方面做错了什么？

Answer 1

你的时间戳不正确：

import datetime
utc_time = datetime.datetime.utcnow()
timestamp = (utc_time - datetime.datetime(1970, 1, 1)).total_seconds()

Answer 2

您的 Javascript 似乎比必要的复杂得多，除非我误解了您的目标。 Unix 时间戳值始终为 UTC，默认情况下，基本 Date.toString() 将在本地客户端时区输出。除非您想要提供的标准格式以外的输出格式，否则无需手动转换。

var ourDateTime = new Date(timestampFromServer);
console.log(ourDateTime.toString());