The month and day names that display on the calendar
can be customized to fit most any language requirement. Just use the Setup Manager and
edit the names which are on the Languages page then click Save Changes.
The Event Manger also support language packs. Several are included in the calendar distribution. You can modify them to fit your needs by editing the files in the languages directory.
Julian Day Count http://us3.php.net/manual/en/function.gregoriantojd.php
Open the esstyle.css file in the theme directory that you're using (probably default). Look for...
Edit the events/headerCustom.inc.php file (remove the .new from the name if this hasn't been done...
Please see the instructions for using the included Filter plugin.
The Event Manager by default opens with the previous, current and next months events displayed....