Interesting... Maybe this concept can be expanded into seperate app and widget.

App: Based on a csv/txt file, we should be able to chose the shift name for dates in a month and the events would be automatically created in the calender. The event names should follow a simple and uniform pattern.

Widget: Only event names in particular regex format will be displayed.

NOTE: the csv/txt file will be something like

Name,start,end
S3,1000,1500
S4,1500,2000


The advantage would be the reusability. The shift timings, names, etc can easily be modified by the user by modifying the txt/csv file. Also, instead of shifts, it can be used to define anything else, like show timings (if you're a performer), class timings (for students), etc.

What do you think?