es-shimsdate 
ES spec-compliant shim for Date. Invoke its "shim" method to shim Date if it is unavailable or noncompliant.
This package implements the es-shim API “multi” interface, v3. It works in an ES3-supported environment, and complies with the spec.
Most common usage:
var assert = require('assert');
var shims = require('date');
assert.deepEqual(shims, [
'Date',
'Date.prototype.getFullYear',
'Date.prototype.getMonth',
'Date.prototype.getDate',
'Date.prototype.getUTCDate',
'Date.prototype.getUTCFullYear',
'Date.prototype.getUTCMonth',
'Date.prototype.toUTCString',
'Date.prototype.toDateString',
'Date.prototype.toString',
'Date.prototype.toISOString',
'Date.prototype.toJSON',
'Date.now',
'Date.parse',
]);
require('date/auto'); // will be a no-op if not needed
assert.ok(new Date() instanceof Date);
assert.equal(typeof Date.now(), 'number');
// etc, with all the Date methods you expect
Tests
Simply clone the repo, npm install, and run npm test