ePublisher can add a time stamp to PDF XSL-FO Title Page that displays the date of the most recent generation. This feature is made available by enabling the Generate Publish Date on Title Page Target Setting.

If you would like to change the date format, it can be done with an override to the locales.xml file.

Copy locales.xml from:

C:\Program Files\WebWorks\ePublisher\2015.1\Formats\Shared\common\locale\locales.xml

To:

<Project Folder>\Formats\Shared\common\locale\locales.xml

In the locales.xml file, locate the element with the name PublishDateFormat. The value inside this element can be changed to match the desired date format. For more information on how to write proper format values in this element, refer to Microsoft's documentation on Custom date and time format strings.