Nowruz in Islam is/are a cultural festival that marks the Persian New Year and the arrival of spring. It is not an Islamic religious holiday but rather a secular, national celebration with roots that predate Islam. While Nowruz is not officially recognized within the Islamic religious calendar, many Muslims from regions that traditionally observe Nowruz, such as Iran, Central Asia, Afghanistan, Pakistan, and some parts of the Middle East and the Caucasus, participate in the cultural festivities. The observance of Nowruz among Muslims varies and may incorporate elements of both cultural tradition and religious sentiments depending on local customs and individual beliefs.