Can You Pray Early in Islam? 
In Islam, it is forbidden to pray before the appointed times. You can pray early in the morning, but you should wait until it’s time for the fajr. If you miss fajr, you can delay your asr and Dhuhr salah until after sunset. However, if you’re unable to do so, you should still pray.
Muslims should pray at the time of sunrise
The Prophet Muhammad told his followers that the time to stop praying is at sunrise. This is the time when the sun rises between the two horns of the devil. It is also the time when the infidels prostrate themselves in front of the sun. The prayer is witnessed and angels attend the event. The prayer is over when the shadow of the sun is as wide as a lance. It is considered a ‘jahannam’.
The time for Fajr is the time from the first break of dawn to the first appearance of the sun. Many scholars and imams believe that the Prophet was consistent in this practice. Moreover, authentic traditions also confirm this. However, it is still not mandatory to pray at the time of sunrise.
There are also times that Salat is not permissible to perform. However, in most cases, Muslims should do it at least once a day. A voluntary prayer can be offered during these times.
Muslims should delay Dhuhr salah
The Prophet once suggested Muslims to delay the Dhuhr salah until after the midday heat had subsided. The Prophet also recommended that we delay the Asr prayer until the sun had set. This is the best way to avoid the rush of the early morning crowds. We should not rush our prayers, either. We should wait until the heat has subsided and the congregation is able to pray easily.
If the afternoon prayer is too early, we must wait until a quarter of the night before we start the morning prayer. It is not permissible to sleep before or after this time. It is also not permissible to talk during the prayer. The Messenger of Allah used to recite at least 100 verses in the morning, and it was sufficient that the twilight had dispersed by the time we started our prayer.
According to the Prophet Muhammad, the sun is open in the heavens at noon, and the prayer at noon is said to bless the person who offers it. In the desert, Muslims should delay the Dhuhr salah if the heat is unbearable. In fact, the Prophet peace and blessings be upon him believed that the heat of Jahannam was linked to the heat of the desert.
Muslims should delay Asr salah to the time of sunset
Delaying Asr salah to the time of the sunset is a common Islamic custom, originating in the time of the Prophet Muhammad. It is recommended to delay the time of Asr salah until sunset in order to avoid waking up too early for the recitation of the prayer. This practice is known as qala ‘akhbarana shuaybun or HadWathana ‘abuw lyamani.
The Prophet Muhammad narrated that Muslims should stop their prayer when the sun rises and the shadow of an object is two times higher than its height. The sun’s rise and fall are signs of jahannam, which means that the prayer is a jahannam. Infidels prostrate themselves to the sun during this time of the day. This period is also observed by angels and witnesses.
In the event that a person forgets to offer Asr salah, he should return to the Zuhr prayers. Then, he or she can perform Asr prayers with the same niyyat.