Add time start date and end date values on page contribution widget ajax response
Contribution page widgets calls civicrm/extern/widget.php to extract info of the campaign related to the widget. In some cases it maybe interesting to have the time to start or to finish the campaign to customize the widget with options such as "Starts in X days", "Ends in X days" or anything else.
in the line of https://issues.civicrm.org/jira/browse/CRM-21454