“…-working time fl exibility consisting in adjusting working hours and working time schedule to the changing needs in this matter (Gableta, 2003;Jagoda, 2013), -location fl exibility (workplace) referring to employees performing work outside an enterprise (Jagoda, 2013), -quantity fl exibility manifested in employment optimization by the division of tasks into those carried out in an enterprise and the outsourced ones and/or by infl uencing the structure of employment contracts (substituting permanent employment contracts by fi xed-term employment contracts or civil-law ones) (Atkinson 1984;Gableta 2003;Jagoda 2013), -functional fl exibility, i.e. taking advantage of employees' skills to perform diverse tasks depending on the needs arising in an organization, through the rotation at workplaces or expanding their responsibilities (Atkinson, 1984;Gableta, 2003;Jagoda, 2013). Th e subject literature off ers relatively well defi ned terms of working time fl exibility.…”