The set of portlets supporting time management consists of portlets Calendar, Tasks and Contacts.
Details and the description may be found in master's thesis of the author [1] and in a user manual. The user manual is attached to this application in a form of a PDF file, located: /src/main/webapp/user-manual.pdf.
[1] Bc. Martin Basovník: Portlets based time management tools, Master's Thesis, Brno, FIT VUT v Brně, 2013