In one of our apps, the requirement was having a datetime field which will allow user/admin to select date and time in active admin. So the very first option which I had that was to use existing gem, http://github.com/saepia/just-datetime-picker But this gem doesn't seem to be maintained since last year, so this option was ruled out! The next option was creating DateTimePicker manually using gem "jquery-ui-rails" and then adding .js and .css.scss files in active-admin, this solution was also not working for me! We found one gem gem 'pickadate-rails' documentation can be