{"action":"created","issue":{"url":"https://api.github.com/repos/moment/moment-timezone/issues/191","labels_url":"https://api.github.com/repos/moment/moment-timezone/issues/191/labels{/name}","comments_url":"https://api.github.com/repos/moment/moment-timezone/issues/191/comments","events_url":"https://api.github.com/repos/moment/moment-timezone/issues/191/events","html_url":"https://github.com/moment/moment-timezone/issues/191","id":61703967,"number":191,"title":"Etc/GMT issue (confusion)","user":{"login":"shawnjacobson","id":8713576,"avatar_url":"https://avatars.githubusercontent.com/u/8713576?v=3","gravatar_id":"","url":"https://api.github.com/users/shawnjacobson","html_url":"https://github.com/shawnjacobson","followers_url":"https://api.github.com/users/shawnjacobson/followers","following_url":"https://api.github.com/users/shawnjacobson/following{/other_user}","gists_url":"https://api.github.com/users/shawnjacobson/gists{/gist_id}","starred_url":"https://api.github.com/users/shawnjacobson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/shawnjacobson/subscriptions","organizations_url":"https://api.github.com/users/shawnjacobson/orgs","repos_url":"https://api.github.com/users/shawnjacobson/repos","events_url":"https://api.github.com/users/shawnjacobson/events{/privacy}","received_events_url":"https://api.github.com/users/shawnjacobson/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-03-14T22:02:25Z","updated_at":"2015-03-14T23:20:15Z","closed_at":"2015-03-14T23:20:15Z","body":"I'm not understanding why GMT-5 shows a positive offset.  This can easily be seen comparing the following 2 formatted zones, which should be equivalent...\r\n\r\nmoment.tz([2012, 5], 'America/Chicago').format('Z z');  // -05:00 CDT\r\nmoment.tz([2012, 5], 'Etc/GMT-5').format('Z z');  // +05:00 GMT-5\r\n\r\n...can someone explain to me what is going on here."},"comment":{"url":"https://api.github.com/repos/moment/moment-timezone/issues/comments/80758909","html_url":"https://github.com/moment/moment-timezone/issues/191#issuecomment-80758909","issue_url":"https://api.github.com/repos/moment/moment-timezone/issues/191","id":80758909,"user":{"login":"mj1856","id":1396388,"avatar_url":"https://avatars.githubusercontent.com/u/1396388?v=3","gravatar_id":"","url":"https://api.github.com/users/mj1856","html_url":"https://github.com/mj1856","followers_url":"https://api.github.com/users/mj1856/followers","following_url":"https://api.github.com/users/mj1856/following{/other_user}","gists_url":"https://api.github.com/users/mj1856/gists{/gist_id}","starred_url":"https://api.github.com/users/mj1856/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mj1856/subscriptions","organizations_url":"https://api.github.com/users/mj1856/orgs","repos_url":"https://api.github.com/users/mj1856/repos","events_url":"https://api.github.com/users/mj1856/events{/privacy}","received_events_url":"https://api.github.com/users/mj1856/received_events","type":"User","site_admin":false},"created_at":"2015-03-14T23:20:15Z","updated_at":"2015-03-14T23:20:15Z","body":"This is normal.  Those zone IDs have the sign inverted.  This isn't our decision - it comes from the source data.  See also [for a more detailed explaination](http://stackoverflow.com/a/23643847/634824).\r\n\r\nAnd really, if you are working with fixed-offset time zones, you don't need moment-timezone at all.  You can just use the [`utcOffset`](http://momentjs.com/docs/#/manipulating/utc-offset/) function in the main moment.js."}}