parseZone2.3.0+

moment.parseZone()
moment.parseZone(String)
moment.parseZone(String, String)
moment.parseZone(String, [String])
moment.parseZone(String, String, Boolean)
moment.parseZone(String, String, String, Boolean)

Moment's string parsing functions like moment(string) and moment.utc(string) accept offset information if provided, but convert the resulting Moment object to local or UTC time. In contrast, moment.parseZone() parses the string but keeps the resulting Moment object in a fixed-offset timezone with the provided offset in the string.

moment.parseZone("2013-01-01T00:00:00-13:00").utcOffset(); // -780 ("-13:00" in total minutes)
moment.parseZone('2013 01 01 05 -13:00', 'YYYY MM DD HH ZZ').utcOffset(); // -780  ("-13:00" in total minutes)
moment.parseZone('2013-01-01-13:00', ['DD MM YYYY ZZ', 'YYYY MM DD ZZ']).utcOffset(); // -780  ("-13:00" in total minutes);

It also allows you to pass locale and strictness arguments.

moment.parseZone("2013 01 01 -13:00", 'YYYY MM DD ZZ', true).utcOffset(); // -780  ("-13:00" in total minutes)
moment.parseZone("2013-01-01-13:00", 'YYYY MM DD ZZ', true).utcOffset(); // NaN (doesn't pass the strictness check)
moment.parseZone("2013 01 01 -13:00", 'YYYY MM DD ZZ', 'fr', true).utcOffset(); // -780 (with locale and strictness argument)
moment.parseZone("2013 01 01 -13:00", ['DD MM YYYY ZZ', 'YYYY MM DD ZZ'], 'fr', true).utcOffset(); // -780 (with locale and strictness argument alongside an array of formats)

moment.parseZone is equivalent to parsing the string and using moment#utcOffset to parse the zone.

var s = "2013-01-01T00:00:00-13:00";
moment(s).utcOffset(s);