By default crud-json-api will return timestamps in the following format:
"created-at": "2018-06-10T13:41:05+00:00"
If you prefer a different format, either specify it in your bootstrap.php
file or right before a
specific action. E.g.
\Cake\I18n\FrozenTime::setJsonEncodeFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
\Cake\I18n\FrozenDate::setJsonEncodeFormat('yyyy-MM-dd');