views_date_sql_format currently doesn't have support for the 'o' formatter and this hinders Views Date Format SQL. I have made a feature request in views ( https://www.drupal.org/node/2402613 β ), however until/if it's resolved I think that Views Date Format SQL should implement a custom function for the conversion.
Closed: outdated
3.1
Code
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.