Well, the Hijri date 3 Rajab 1440 corresponds to the Gregorian date Sunday, 10 March 2019. This date lies in the seventh month of the Hijri year 1440 AH, which is Rajab of 1440 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1440/07/03 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 10 March 2019 to its equivalent Arabic date.
The following is the conversion of the Arabic date 3 Rajab 1440 AH to its equivalent Gregorian date.
وَلَن يُؤَخِّرَ ٱللَّهُ نَفْسًا إِذَا جَآءَ أَجَلُهَا ۚ وَٱللَّهُ خَبِيرٌۢ بِمَا تَعْمَلُونَ
But Allah reprieveth no soul when its term cometh, and Allah is Informed of what ye do.
Surah Al-Munaafiqoon(63:11)
Sahih al-Bukhari
Witr Prayer
Chapter: What is said regarding the Witr prayer
Narrated `A'isha:
Allah's Messenger (ﷺ) used to pray eleven rak`at at night and that was his night prayer and each of his prostrations lasted for a period enough for one of you to recite fifty verses before Allah's Messenger (ﷺ) raised his head. He also used to pray two rak`at (Sunnah) before the (compulsory) Fajr prayer and then lie down on his right side till the Mu'adh-dhin came to him for the prayer.
Sahih al-Bukhari 994