HomeHijri calendar

Islamic lunar calendar — computed live

Hijri calendar & date converter

The Hijri calendar is the Islamic lunar calendar: twelve months that begin with the new moon, about 11 days shorter than the Gregorian year. The panel below shows today's Hijri date, worked out live in your browser from the Umm al-Qura calendar — convert any date, see upcoming Islamic occasions, and browse the full Hijri year.

Today in the Hijri calendar
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Gregorian → Hijri

Pick any date; the Hijri equivalent appears instantly.

±1 dayIslamic calendar dates here are astronomical (Umm al-Qura) estimates. Dates your community actually observes — especially the start and end of Ramadan and the Eids — can differ by a day based on local moon sighting.

Hijri → Gregorian

Choose a Hijri day, month, and year, then convert.

±1 dayThe result is the Umm al-Qura estimate for that Hijri date. Historically observed dates may sit a day either side, because months began with the physical sighting of the new moon.

How the months run

A Hijri month is 29 or 30 days, set by the moon. This converter resolves day 30 only in months that have one — if a month is short, try day 29.

Months alternate through the Gregorian year, drifting about 11 days earlier annually. Ramadan, for instance, passes through every season over a 33-year cycle — a reminder that the Islamic year is anchored to the moon, not the sun.

Upcoming Islamic dates

Computed live for the next 400 days from today, with estimated Gregorian dates and a countdown. All dates are Umm al-Qura estimates subject to local moon sighting.

The Hijri year, month by month

Every day of the current Hijri year with its Gregorian equivalent. Today is outlined in gold.

How the Islamic calendar works

The Islamic calendar is purely lunar. Each of its twelve months — from Muharram to Dhul-Hijjah — runs 29 or 30 days and begins with the birth of the new moon. Twelve such months make a year of 354 or 355 days, about 11 days shorter than the Gregorian year. There is no intercalation: the Qur'an explicitly forbids adjusting the calendar to keep seasons in place, so Islamic months cycle through every season over roughly 33 years.

Two broad methods decide when a month actually starts. Sighting-based calendars wait for the new crescent to be seen with the eye by reliable witnesses. Calculated calendars, like the Umm al-Qura calendar used officially in Saudi Arabia and throughout this page, derive the months from precise astronomy: the conjunction of the moon and sun, the moon's visibility near sunset, and set rules for month lengths. Many Muslim communities mix both — calculation for planning, sighting for confirmation.

Related reading: Islamic glossary for terms like Ramadan and Eid, and daily prayer times for your city.

Why Hijri dates differ by a day

If you have ever had two calendars disagree on the first day of Ramadan, both were probably right. A new moon is born at a precise moment, but it becomes visible only hours later, low on the western horizon after sunset — and only if the sky, the angle, and the distance cooperate. Morocco may see the crescent on Tuesday evening while Turkey, going by calculation, has already started the month on Tuesday morning, and a country following Saudi Arabia's announcement starts Wednesday.

So Hijri dates differ for three ordinary reasons: the method (sighting versus calculation), the location (a moon visible in one region is not visible in another), and the authority a community follows. The gap is almost never more than one or two days, but it lands exactly where precision matters most: the start and end of Ramadan, and the Eids. Whatever your community follows, the day of Arafah and the Eids are announced locally — plan by estimate, confirm by announcement.

When is Ramadan 2027?

Computing the estimated date…

That estimate comes from the same Umm al-Qura calculation this page uses for every date. Most communities will begin fasting on this day or the day after it, once the Ramadan crescent is actually seen — or according to the calendar your local mosque follows. If you plan travel, leave, or qada fasts around the start and end, keep one flexible day on each side.

Prepare early: browse the dua library for Ramadan duas, and set up prayer times for your city.

Frequently asked questions

What is today's Hijri date?

This page shows it live, computed in your browser from the Umm al-Qura calendar — see the panel at the top. Because the Islamic day begins at sunset, the date shown applies to daytime hours in your local time zone; after sunset the next Hijri date has already begun.

Why do Hijri dates differ between countries?

Communities differ on how a month starts: local moon sighting, astronomical calculation, or following another country's announcement. A crescent visible in one place may not be visible in another, so the same Islamic date can begin a day apart in different regions — especially around Ramadan and Eid.

How many days are in a Hijri year?

354 or 355 — twelve lunar months of 29 or 30 days. With no intercalation, Islamic dates arrive about 11 days earlier each Gregorian year and cycle through all four seasons in about 33 years.

When does Ramadan 2027 start?

By the Umm al-Qura calculation, 1 Ramadan 1448 AH falls on approximately Monday 8 February 2027, with fasting commonly beginning that day. The actual start depends on the sighting of the new moon in your region and may differ by a day.

What is the Umm al-Qura calendar?

The official Islamic calendar of Saudi Arabia, built from astronomical calculation of the new moon. It is the standard used by this converter, and it is a close estimate — Saudi Arabia still adjusts some months by physical sighting, so observed dates can shift by a day.

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Islamic dates on your phone

Ramadan, the Eids and Ashura with notifications, plus prayer times.

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