The five-day prayer is one of the five Pillars of Islam. Allah decreed this five-hour prayer command when the event of Isra 'Mi'raj. Salat five times are as follows:
Subuh
Consists of 2 rak'ahs. Shubuh time begins with the emergence of dawn shaddiq, ie white light that transverse in the eastern horizon. Shubuh time ends when the sun rises.
Zuhur
Consisting of 4 rak'ahs. The time of Zhuhur begins when the sun has slipped (inclined) to the west, and ends when Ashar time.
Asar
Consisting of 4 rak'ahs. Ashar time begins if the length of the shadow of the object exceeds the length of the object itself. Especially for the Imam Hanafi madzab, the time of Ahsar begins when the length of the shadow of the object is twice the length of the object itself. Asar's time ends with the setting of the sun.
Magrib
Consisting of 3 rak'ahs. The time of sunset begins with the setting of the sun, and ends with the entry of Isha.
Isya
Consisting of 4 rak'ahs. Isha time begins with the loss of red light (syafaq) in the western sky, and ends until the dawn of shaddiq the next day. According to the Imam of Shia, Salat Isya may be performed after the Maghrib Prayer.