Mayor Bill de Blasio announced on Wednesday that two days in the NYC public school year will be turned into days off in observance of Muslim holidays Eid al-Adha and Eid al-Fitr.

De Blasio made the announcement at a Brooklyn public school where 36 percent of its students were absent on the last day Eid al-Adha occurred during an instructional day in the school year. The new days off will be built into the public calendar for the upcoming September, and summer school will be closed in observance of Eid al-Fitr.