A day with two daily rests

Interpretation for a day, in which two daily rests occurred within 24 hours is as follows:

The case of a day, during which two regular daily rests occur within 24 hours, is the exception to the interpretation.

 
click to expand/collapsecase A:   first - SHORTENED, second - SHORTENED
click to expand/collapsecase B:   first - REGULAR, second - SHORTENED
click to expand/collapsecase C:   first - SHORTENED, second - REGULAR