How can one perform the Dhuhr prayer at school if there is no place for Muslims to pray there, noting that school hours continue until 4:00 PM?

Allah has favored the Ummah of Muhammad with unique characteristics not granted to previous nations. Among these is the permissibility of prayer in any pure place that is not defiled (najis) or prohibited for prayer. This is based on the Prophet, peace and blessings be upon him, who said: "The whole earth has been made for me a mosque and a means of purification." Exceptions to this include places like graveyards, bathrooms, and camel resting places. One must be diligent in performing prayers on time and not be complacent about them.