Islamic Calendar (Hijri & Key Islamic Events)
The Islamic (Hijri) calendar is a pure lunar calendar used by Muslims worldwide to determine the dates of Ramadan, Eid al-Fitr, Eid al-Adha, and other key Islamic events. Each month begins with the sighting of the new moon. This tool shows the corresponding Hijri date for every Gregorian day.
Select a Month and Year above, then click "View".
What is the Islamic (Hijri) Calendar?
The Hijri calendar is a purely lunar calendar consisting of 12 months of 29 or 30 days, totaling 354 or 355 days per year — about 11 days shorter than the Gregorian solar year. It begins from the Hijrah (migration) of Prophet Muhammad ﷺ from Mecca to Medina in 622 CE. Each month starts when the new crescent moon is sighted, though most calendars use astronomical calculation.
The Hijri year is denoted as AH (Anno Hegirae). To convert: AH ≈ (Gregorian year − 622) × (354.367/365.2425), which gives an approximate value. The exact AH year for any date depends on which Hijri month has been reached. This tool uses the Kuwaiti algorithm for Gregorian-to-Hijri conversion.
How to use this calendar
01
Select & Navigate
Select Month and Year, or navigate with "←" and "→" buttons.
02
Key Islamic Events
See which Islamic events fall in this month — Ramadan, Eid, Ashura, Shab-e-Qadr — with their Hijri and Gregorian dates.
03
Hijri Dates
Every day shows its Hijri date — day number and month name — so you can plan ahead for Islamic observances.
04
Hijri Year (AH)
The title shows the Hijri year and the dominant Hijri month for the selected Gregorian month.
Frequently Asked Questions
How is the Hijri year (AH) calculated?
AH = Anno Hegirae, counted from the Hijrah of Prophet Muhammad ﷺ in 622 CE. Since the Hijri year (~354.37 days) is shorter than the Gregorian year (~365.24 days), the AH year number increases slightly faster. For a rough conversion: AH ≈ (Gregorian year − 622) × 0.970. This tool uses the Kuwaiti algorithm for precise date-to-date conversion.
Why do Islamic dates shift every year?
The Hijri calendar is purely lunar (12 months × 29.53 days = 354.37 days), while the Gregorian calendar is solar (365.24 days). The ~11-day difference means each Islamic event shifts ~11 days earlier in the Gregorian calendar each year. Ramadan in 2025 starts around March 1, but by 2035 it will start around mid-February.
Is this based on moon sighting or calculation?
This tool uses astronomical calculation (the Kuwaiti algorithm), not physical moon sighting. Most countries now use calculation for civil purposes, though some still rely on local moon sighting committees. Actual dates may differ by 0–1 days depending on your region and local authority.
Which Islamic events does this calendar show?
This calendar marks 10 key events: Islamic New Year (1 Muharram), Ashura (10 Muharram), Mawlid an-Nabi (12 Rabi ul-Awal), Isra & Mi'raj (27 Rajab), Shab-e-Barat (15 Sha'ban), Start of Ramadan (1 Ramadan), Laylat al-Qadr (27 Ramadan), Day of Arafah (9 Dhul Hijjah), Eid al-Adha (10 Dhul Hijjah), and Eid al-Fitr (1 Shawwal).
Note on accuracy: Calculated dates may differ by 0–1 day from local moon-sighting authorities. For religious observance, always confirm with your local mosque or Islamic centre.
Note on privacy: Your data is not saved. The email input is for the demo CTA only.