How do I get the calendar like in "Start Publishing" ? - Joomla! Forum - community, help and support

in article edit screen, several items under "parameters - article" have calendar pops up.

i want too.

i having difficulty locating code implements "parameters - article" section.  pointers?

that calendar input field can built using calendar method of jhtml

code: select all

jhtml::_('calendar', $value, $name, $id, $format, $attribs)

you can find in libraries/joomla/html/html.php