I ve updated Joomla to 3.7 on many sites. Some of them are news portals and we have the following issue:

On item creation & edit we change the dates (created & publish) to future datetime but on save it goes back to current datetime.

I guess its a js issue on the calendar but i could find where to change the field. If you could point where I cant find the field so i can remove the calendar js and keep straight textfield I would be glad.

I ve found it in view.html.php on administrator so i change it to :
// Set up calendars
$lists = '<input type="text" id="created" name="created" value="'.$created.'" autocomplete="off">';
//JHTML::_('calendar', $created, 'created', 'created', '%Y-%m-%d %H:%M:%S');
$lists = '<input type="text" id="publish_up" name="publish_up" value="'.$publishUp.'" autocomplete="off">';

//JHTML::_('calendar', $publishUp, 'publish_up', 'publish_up', '%Y-%m-%d %H:%M:%S');
$lists = '<input type="text" id="publish_down" name="publish_down" value="'.$publishDown.'" autocomplete="off">';
//JHTML::_('calendar', $publishDown, 'publish_down', 'publish_down', '%Y-%m-%d %H:%M:%S');