The shift schedule for the Marl chemical park for the 12-hour alternating shift (4x12h shift system) there is also a shift schedule for 4x8h. The shift schedule also shows saved appointments and the school holidays in North Rhine-Westphalia. It is possible to enter holidays, free shifts in the plan and to manage credit hours. If the shift should be changed for one or more days, that's no problem either! Simply enter a change and the other shift system is displayed for the period - even the shift