It is narrated from Hazrat Abu Hurairah that the Messenger of Allah, peace and blessings be upon him, said: Every prayer has a beginning time and an ending time. The beginning time of Zuhr is when the sun declines (from its zenith). The ending time of Zuhr is when the time of Asr begins. The beginning time of Asr is when its time begins, and its ending time is when the sun becomes yellow. The beginning time of Maghrib is when the sun sets, and its ending time is when the twilight disappears. The beginning time of Isha is when the twilight disappears, and its ending time is when half the night passes. The beginning time of Fajr is when the dawn appears, and its ending time is when the sun rises.