MSU Main Campus - Marawi City > 10-Reduced Inequalities (SDG Goals) > The Enduring Significance of the Hijra Calendar: Insights from Alim Ihsan Manaol

Aliah P. Cali-Pascan, DPA, JD, Sh.L

MSU, Marawi City, June 27, 2025– In a recent insightful program on ShuaraMSU, Alim Ihsan Manaol, a distinguished Faculty member of the King Faisal Center for Islamic Arabic and Asian Studies, delved into the profound significance of the Hijra Calendar, shedding light on its unique characteristics and enduring relevance for Muslims worldwide. Manaol emphasized that the Hijra Calendar, unlike the Gregorian calendar which is based on the sun’s cycle and the moon’s phases, is a purely lunar calendar. This means its months, alternating between 29 and 30 days, are determined solely by the sighting of the new crescent moon. This fundamental difference leads to the Hijra year being approximately 10 to 12 days shorter than the Gregorian year, causing Islamic dates and observances to gradually shift across the Gregorian calendar and seasons over time.

A crucial point highlighted by Manaol was the historical genesis of the Hijra Calendar. It was not, as some might assume, established at the birth of Prophet Muhammad (peace be upon him). Instead, its epochal starting point is the Hijra itself – the Prophet’s migration from Mecca to Medina. This pivotal event, marking a turning point in Islamic history, signified a time when the Muslim community gained the clarity to discern between good and bad, establishing a new order.

Manaol further explained the concept of “sacred months” within the Hijra Calendar. He noted that certain months, specifically Dhul qe’dah, Dhul Hijja, Rajab and Muharram, are traditionally designated as periods where conflict should be avoided in the Arab world, promoting peace and reflection. However, he clarified that this does not negate the right to self-defense, citing historical instances where Muslims, like in Iran, have rightfully stood their ground when their existence was threatened.

The practical applications of the Hijra Calendar in Islamic law and daily life were also underscored. Manaol provided examples such as the calculation of the ‘Idda (the waiting period for a woman after divorce or widowhood), which is meticulously based on lunar cycles and specific events. Similarly, the duration of contracts in Islamic dealings is often tied to the Hijra dates, reflecting its integral role in Muslim jurisprudence.

A common query among Muslims, particularly observed in the Philippines, revolves around the differing dates of Eid al-Fitr and Eid al-Adha. Manaol clarified this by explaining that while Eid al-Fitr, marking the end of Ramadan, is determined by local moon sightings (as the performance of Ramadan fasting is a local act), Eid al-Adha is intrinsically linked to the performance of the Hajj pilgrimage. Since Hajj culminates in the Kingdom of Saudi Arabia, the timing of Eid al-Adha globally is aligned with the sighting of the moon there, ensuring a unified celebration for pilgrims and Muslims worldwide participating in the rites of sacrifice. Manaol’s discussion provided a comprehensive understanding of the Hijra Calendar, from its historical roots and religious significance to its practical implications in contemporary Muslim life, emphasizing its role in maintaining cultural identity and adherence to Islamic principles.

About the author

The institute for peace and development in Mindanao (IPDM) was created by the MSU Board of Regents during its 182nd Meeting on December 7, 2001. The institute assumed the functions of two defunct units: the Muslim Christian Center for Peace Studies and the Muslim Mindanao Development Institute. It is now the central coordinating unit for all existing peace and development programs of the campuses of the University. MSU was established on September 1, 1961 as one of the government responses to the so-called “Mindanao problem.” The problem includes a violent struggle of segments of the Filipino Muslim population to redress long-standing grievances and assert Muslim selfhood and identity in the face of real and imagined threats of cultural and spiritual assimilation by the majority Filipino Christian population. The University was mandated to accelerate the “integration” of the cultural communities in Mindanao into the mainstream body politic and to accelerate the development of its service areas through instruction, research, and extension. In the pursuit of these objectives, the University also seeks to infuse spiritual and moral values, national consciousness and solidarity, and mutual understanding among Filipinos, which are necessary for peaceful coexistence and sustainable development. IPDM was therefore, created with the expectation that it would contribute to the easing of tensions and the promotion of justice and peace between Filipino Muslims and Christian by expanding knowledge, improving understanding and heightening sensitivity in relations between the peoples of Mindanao in particular, and the Philippines in general.

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