The following dates have been declared non-working holidays for the months of March and April:

March 27
Holy Wednesday
Work until 12 noon only
UA&P Additional non-working day 

March 28
Maundy Thursday
Regular holiday

March 29
Good Friday
Regular holiday

March 30
Black Saturday
Additional special non-working day

April 9 (Tuesday)
Araw ng Kagitingan (Day of Valor)
Regular holiday

Please refer to this link for the other regular and special non-working days for the year 2024.