how to set the 24 hour time to the js calendar plugin jquery code example

Example: start day picker and end date picker in php

<div class="em-date-range">From
 <input class="em-date-input-loc em-date-start" type="text" name="ticket_start_pub" />
 <input class="em-date-input" type="hidden" name="ticket_start" />
 to
 <input class="em-date-input-loc em-date-end" type="text" name="ticket_end_pub" />
 <input class="em-date-input" type="hidden" name="ticket_end" /></div>