PIONEER GLOBAL ISLAMIC UNITY THROUGH STRATEGIC IMPLEMENTATION OF THE UNIFIED GLOBAL HIJRI CALENDAR STARTING 1447 H AS A MODEL OF CIVILIZATIONAL RESILIENCE

Rihan Yuhyi, Alya Fathi Muhammad Hasibuan, Fadilla Sayu Ananda

Abstract


The ongoing divergence in determining the Islamic lunar calendar has long been a challenge for Muslim unity, especially in the highly connected post-digital era where geographical boundaries are becoming increasingly irrelevant. This paper analyzes the strategic breakthrough initiated by Muhammadiyah in implementing the The Unified Global Hijri Calendar (KHGT), which began in Muharram 1447 H (2025). Using a multidisciplinary approach that combines astronomical algorithms (astronomy) and contemporary Islamic jurisprudence (fiqh), this study evaluates the implementation of the KHGT not merely as an administrative adjustment, but as a model of resilience and profound civilizational innovation. This research highlights how the transition from locally bound Wujudul Hilal to a globally integrated KHGT represents an epistemological shift necessary to address the demands of a united global Muslim community. By examining astronomical data for 1447 AH, including crucial corrections to the start of Ramadan and the underlying fiqh reasoning, this study argues that Muhammadiyah's pioneering step offers a concrete and scientifically robust solution to the centuries-old problem of Islamic calendar dualism. The findings show that this implementation serves as a blueprint for global Islamic governance, proving that Islamic tradition has an inherent resilience to adapt and lead in the modern scientific era.


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References


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DOI: https://doi.org/10.3059/insis.v0i0.29152

DOI (PDF): https://doi.org/10.3059/insis.v0i0.29152.g14978

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