The Monday through Sunday workweek normally lasts 8 working days, and the Monday through Saturday playweek normally lasts four working days. When you include in the possibility of public holidays, that overall amount increases to ten working days, and twelve-playing days.
But the days themselves are just one aspect of the calendar, and there are a lot of others. The months of the calendar represent various seasons, and the time between each of those months offers us the seasonal cycle. At the start of spring, the temperature level is high and the days are warm, while at the end of winter the air is cold and the days are chilly. Every season has its own special time related to it, and the calendar assists us monitor all of those shifts. Any seasonal change is shown in the calendar, and it tells us when and where to go throughout particular times of the year.
Image source: 2021printablecalendars.com