The Hijri Calendar: A Guide to the Gulf's Traditional Timekeeping
Learn how the Islamic lunar calendar shapes daily life, festivals and traditions across the Gulf.
Illustration: AI-generated image
While official documents and business dealings in the Gulf often follow the Gregorian calendar, the rhythm of cultural and religious life is set by another system: the Hijri calendar. This lunar calendar, central to Islamic practice, determines the timing of Ramadan, the two Eids, and many other traditions. Understanding it offers a deeper appreciation of the region's heritage.
What is the Hijri calendar?
The Hijri calendar began in 622 CE, marking the migration (Hijra) of the Prophet Muhammad from Mecca to Medina. It is a purely lunar calendar, with each month beginning when the new crescent moon is first sighted. A Hijri year has 12 months but only about 354 days, making it roughly 11 days shorter than the solar Gregorian year.
The twelve lunar months
The months of the Hijri calendar are: Muharram, Safar, Rabi' al-Awwal, Rabi' al-Thani, Jumada al-Awwal, Jumada al-Thani, Rajab, Sha'ban, Ramadan, Shawwal, Dhul Qa'dah, and Dhul Hijjah. Four of these are considered sacred: Muharram, Rajab, Dhul Qa'dah, and Dhul Hijjah. During these months, warfare was traditionally forbidden, and many Muslims choose to increase acts of worship.
Why dates shift each year
Because the Hijri calendar is shorter than the solar year, Islamic dates move backward through the seasons by about 10 to 12 days annually. For example, Ramadan may fall in winter one decade and in summer the next. The exact start of each month depends on the physical sighting of the new moon, which can lead to slight variations between countries. In the Gulf, official moon-sighting committees announce the beginning of key months.
Cultural observances and traditions
The most widely known Hijri month is Ramadan, the ninth month, when Muslims fast from dawn to sunset. The end of Ramadan is marked by Eid al-Fitr on the first day of Shawwal, a celebration of feasting, family visits, and gift-giving. The twelfth month, Dhul Hijjah, is when the Hajj pilgrimage takes place in Mecca, and it concludes with Eid al-Adha, the Festival of Sacrifice. Other notable times include the first month, Muharram, particularly its tenth day, Ashura, which holds different meanings across Islamic traditions. The month of Rabi' al-Awwal is observed by many as the birth month of the Prophet Muhammad.
Using the Hijri calendar in daily life
In the Gulf, you will often see both Gregorian and Hijri dates on official documents, newspapers, and public signage. Government holidays for Islamic occasions are announced according to the Hijri calendar. Many people also use it for personal milestones, such as remembering the date of a marriage or a child's birth. Even if you don't follow the calendar yourself, being aware of its influence helps you understand why certain days are significant and how the cultural landscape shifts throughout the year.
