Cal42 Plus is a calendar for unsual work cycles (4/2, 3/3, 21 days...)
Cal42 Plus is useful if you have special work hours (example: 4 days working and 2 days resting), in order to know how you will work at a specific date.
Cal42 Plus scan be used with every unregular hours job.
Create your own cycle in the options, Cal42 Plus will show you the result on its calendar !