momentJS获取UTC时间戳

Question

伙计们,我无法使用momentjs获取UTC时间戳.希望有人能指出我正确的方向

var start = Date.now();
var utc = moment.utc(start).toDate();

要么

var utc = moment.utc().toDate();
Tue Nov 11 2014 13:45:13 GMT-0500 (EST)

返回我所在的EST时区,而不是UTC.我如何获得UTC的Javascript日期？

如果我做

var utc= moment.utc();
console.log(utc);

输出是

 { _useUTC: true,
  _isUTC: true,
  _l: undefined,
  _i: undefined,
  _f: undefined,
  _d: Tue Nov 11 2014 13:43:21 GMT-0500 (EST) }

谢谢

Answer 1

评论中最简单的答案:

moment.utc().valueOf()

提供UTC时间戳

Answer 2

var moment = require('moment');

// timestamp with UTC time
console.log(moment.utc().format('ddd MMM DD YYYY HH:mm:ss z'));

// or via the date object
console.log(moment.utc().toDate().toUTCString());