Polish Labour Code (Art. 139: Interrupted working time)
The system can be applied if it is justified by the type of work or its organization. The working time plan within this system should be pre-determined providing for no more than one break at work in a 24-hour period. The break is not counted in the working time, but, for the period of the break, the employee is entitled to half of the remuneration due for a work stoppage. The break should not be longer than 5 hours.