This is why substantive staff have to disclose their extra hours to managers and why there is additional benefit to controlling the bank through a supportive system.
Dyna pam mae’n rhaid i staff parhaol roi gwybod i’w rheolwyr am eu horiau ychwanegol, a pham y mae defnyddio system gefnogol i reoli’r banc yn dwyn budd ychwanegol.