Hello.
Given the fluctuations in the market and, consequently, in the volume of work in production, it is impossible to predict the working calendar and the evenly or unevenly distributed working time (extended work and use of days off) for a whole year in advance, and it is bureaucratic to change the working calendar so many times that it is impossible to know when and if it will be possible to take advantage of it, even with the current notifications of the temporary unevenly distributed working time.  The benefit is always the result of a drop in sales, a reduction in workload, which may happen quickly, or only a few months later, or not at all. It is therefore also very difficult to define in advance a piece of work as overtime or as shifted working time (whatever the legal basis or distinction).
We propose to amend the ZDR-1 in this direction, so that if there are fluctuations in the volume of work, uneven workload over a defined period (trend maybe 2 months before and known for the next 2 months), the employer could decide to pay the hours credited from the temporarily reassigned working time at the rate of overtime. So, if the volume of work and the situation so indicates, many hours are credited. And this without any agreement with the trade unions, consent of the workers, etc. So that a mere notification, reasoning of the factual situation and payment would be sufficient. Subject, of course, to restrictions on the amount of overtime, protected categories.