Parse RSS pubDate using moment.js

parse-rss-pub-date.js

// RSS feeds are supposed to have a standardised date format, as shown in the RSS 2.0 specification:
// All date-times in RSS conform to the Date and Time Specification of RFC 822, 
// with the exception that the year may be expressed with two characters or four characters (four preferred).
// Example: Sat, 07 Sep 2002 0:00:01 GMT
var formats = ['ddd, DD MMM YYYY HH:mm:ss ZZ', 'ddd, DD MMM YY HH:mm:ss ZZ'];
var pubDate = moment(item.querySelector('pubDate').textContent, formats);