Determining an age based on the Islamic lunar calendar involves considering the shorter lunar year of approximately 354 days compared to the solar Gregorian calendar’s 365 days. For instance, someone born on 1 Muharram 1400 AH would be considered a different age in the Hijri calendar than the Gregorian calendar on the same Gregorian date each year. This distinct method requires specialized conversion tools or manual calculations based on the Hijri calendar’s unique structure.
Accurately reckoning time according to the lunar cycle holds cultural and religious significance for Muslims worldwide. It governs various observances, including Ramadan fasting, Hajj pilgrimage, and Islamic holidays. Historically, the Hijri calendar commenced with the Prophet Muhammad’s migration from Mecca to Medina in 622 CE, marking a pivotal moment in Islamic history. This dating system provides a framework for understanding historical events and contextualizing Islamic traditions.