Calculation method

Muslim World League

The Muslim World League method places Fajr when the sun is 18° below the horizon and Isha 17° below the horizon. Maghrib is at sunset. It is conventionally used in the United Kingdom, most of Europe, and as a general default worldwide.

Fajr angle18°
Maghribat sunset
Isha17° below the horizon
Used inthe United Kingdom, most of Europe, and as a general default worldwide

What does the Fajr angle mean?

Fajr begins at true dawn, when the first light appears along the horizon. Astronomically that is expressed as the sun being a set number of degrees below the horizon — here 18°. A larger angle means an earlier Fajr.

How this method differs from the others

All nineteen methods agree on Dhuhr, Asr and Maghrib, because those are fixed by the sun's position and by shadow length rather than by convention. They differ only on Fajr and Isha, which begin when the sun sits a set number of degrees below the horizon — and that number is a judgement about when dawn first appears and when the last light leaves. Muslim World League uses 18° for Fajr. A larger angle means an earlier Fajr and a later Isha; a smaller one, the reverse. Between the widest and narrowest methods the difference can reach half an hour at temperate latitudes, and more in summer further north.

Should you use it?

Use the method your local mosque or national authority uses. Praying in step with the congregation around you matters more than matching any particular calculation, and a method is a convention adopted by a body rather than a fact to be got right. Muslim World League is the convention in the United Kingdom, most of Europe, and as a general default worldwide. If you are elsewhere, your local authority's choice is the one to follow.

Common questions

What Fajr angle does Muslim World League use?

Muslim World League places Fajr when the sun is 18° below the horizon.

When does Isha begin under Muslim World League?

Isha is 17° below the horizon.

Where is Muslim World League used?

It is the conventional method in the United Kingdom, most of Europe, and as a general default worldwide.

See it applied

Calculate for your own location · How prayer times are calculated

The other calculation methods

Methods differ only in the Fajr and Isha angles; every other prayer follows from the sun directly. The angle each one uses is given below.

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