Which Islamic prayer is performed immediately after sunset?

Maghrib is the Islamic prayer performed immediately after sunset.

It is the fourth of the five obligatory daily prayers when the day is counted from dawn: Fajr, Dhuhr, Asr, Maghrib, and Isha. Its time begins after the sun has set and generally lasts until twilight has disappeared, although details differ among legal schools.

Maghrib is commonly performed as three obligatory prayer units, called rakahs. It follows Asr, which is performed in the afternoon, and precedes Isha, the night prayer. The timing is determined by local sunset and twilight rather than by one universal clock time.

The name Maghrib comes from an Arabic root associated with the west or setting of the sun. Because sunset shifts with season and latitude, prayer timetables vary from place to place. During Ramadan, Maghrib also marks the time when the daily fast may be broken.