The Last Friday of Ramdhan is Al Quds Day

Quds Day (Persian: روز قدس rūz-e quds), officially in Iran known as International al-Quds Day
(روز جهانی قدس), is an annual event that began in Iran in 1979, that is commemorated on the last Friday of Ramadan,expressing solidarity with the Palestinian people and opposing Zionism as well as Israel's control of Jerusalem. Quds Day rallies were first introduced in Iran by the Ayatollah Khomeini in 1979, and the day's parades are sponsored and organized annually by the Iranian government there.[3][4] In recent years, only a marginal proportion of young Iranians have attended.Quds Day is also commemorated in several countries in the Arab and Muslim world with protests against the Israeli occupation of East Jerusale

The annual anti-Zionist day of protest was conceived originally by the leader of Iran's Islamic Revolution, Ayatollah Ruhollah Khomeini. In August 1979, the year of the Revolution, in solidarity with the Palestinians, Khomeini declared the liberation of Jerusalem a religious duty to all Muslims.[8][9] He stated: I invite Muslims all over the globe to consecrate the last Friday of the holy month of Ramadan as Al-Quds Day and to proclaim the international solidarity of Muslims in support of the legitimate rights of the Muslim people of Palestine. For many years, I have been notifying the Muslims of the danger posed by the usurper Israel which today has intensified its savage attacks against the Palestinian brothers and sisters, and which, in the south of Lebanon in particular, is continually bombing Palestinian homes in the hope of crushing the Palestinian struggle. I ask all the Muslims of the world and the Muslim governments to join together to sever the hand of this usurper and its supporters. I call on all the Muslims of the world to select as Al-Quds Day the last Friday in the holy month of Ramadan - which is itself a determining period and can also be the determiner of the Palestinian people’s fate - and through a ceremony demonstrating the solidarity of Muslims world-wide, announce their support for the legitimate rights of the Muslim people. I ask God Almighty for the victory of the Muslims over the infidels.