Who has the burden of proving that overtime work has been performed?
The burden of proving entitlement to overtime work rests on the employee, as this monetary claim is not incurred in the normal course of business.
It is thus incumbent upon the employee to first prove that he actually rendered service in excess of the regular eight working hours a day, and that he in fact worked on holidays and rest days.
(Reggie Zonio v. 1st Quantum Leap Security Agency, Inc. and Romulo Par, G.R. No. 224944, May 05, 2021)