The Hijri Calendar Explained (and Why to Use It Daily)
6/5/2026 · 3 min
Most Muslims know the Hijri calendar from Ramadan and Eid — but live the rest of the year by the Gregorian one. Yet the Islamic calendar isn't only for marking festivals; it's a quiet way of keeping your faith woven into ordinary time. Here's how it works and why it's worth living by.
What the Hijri calendar is
The Hijri calendar is the Islamic lunar calendar, counting years from the Hijrah — the Prophet's ﷺ migration from Mecca to Medina in 622 CE. That event, not his birth, marks year one, because the Hijrah was the turning point at which the Muslim community truly began. Dates are written with "AH" (Anno Hegirae, "in the year of the Hijrah").
How the months work
There are twelve lunar months, each beginning with the sighting of the new crescent moon:
- Muharram 2. Safar 3. Rabi' al-Awwal 4. Rabi' al-Thani 5. Jumada al-Awwal 6. Jumada al-Thani 7. Rajab 8. Sha'ban 9. Ramadan 10. Shawwal 11. Dhu al-Qa'dah 12. Dhu al-Hijjah
Each month is 29 or 30 days, depending on the moon, making the year about 354 days — roughly 11 days shorter than the Gregorian year.
Why it shifts each year
Because the lunar year is shorter, Islamic dates move about 11 days earlier in the Gregorian calendar each year. That's why Ramadan slowly travels through the seasons over time — summer Ramadans, then winter ones, across a person's life. It isn't a flaw; it means every season is eventually touched by Ramadan, and no region is permanently advantaged or burdened.
The months that carry weight
Several months hold special significance: Ramadan (fasting), Dhu al-Hijjah (Hajj and Eid al-Adha, including the blessed first ten days), Muharram (one of the four sacred months, containing the fast of Ashura), and Rajab and Sha'ban as a spiritual run-up to Ramadan. Knowing where you are in the Hijri year means never being caught off guard by these seasons of worship.
Why live by it day to day
When you only check the Hijri date once a year, Ramadan arrives "suddenly." When you see it every day, you live inside the rhythm of the Islamic year: you notice the white days approaching for voluntary fasting, you feel Ramadan coming through Rajab and Sha'ban, you mark the sacred months. The calendar becomes a gentle, constant reminder that your time belongs to a sacred order — not just to deadlines and weekends.
Keep both side by side
You don't abandon the Gregorian calendar — your work and the world run on it. The aim is to see both at once: the Gregorian date for the dunya, the Hijri date keeping the deen present. Living with both in view is a small habit with a quiet, lasting effect on how connected your everyday life feels to your faith.
Munazzim shows the Hijri date alongside the Gregorian one on every day of your planner — so the Islamic year stays present as you plan your week. Free to start.