Group-Office is a powerfull modular Internet/Intranet application framework. It features calendaring, project management, e-mail, tasks, addressbook, file management.
Project homepage:
http://sourceforge.net/projects/group-office
Programming language(s): JavaScript,Pascal,PHP
License: other
Some source files from: Group-Office groupware/www/classes/date/Date
Calc.php
Human.php
Span.php
TimeZone.php
See more files for this project here