Well, the Hijri date 20 Rajab 1442 corresponds to the Gregorian date Thursday, 4 March 2021. This date lies in the seventh month of the Hijri year 1442 AH, which is Rajab of 1442 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1442/07/20 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 4 March 2021 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rajab 1442 AH to its equivalent Gregorian date.
وَإِذْ يَرْفَعُ إِبْرَٰهِۦمُ ٱلْقَوَاعِدَ مِنَ ٱلْبَيْتِ وَإِسْمَٰعِيلُ رَبَّنَا تَقَبَّلْ مِنَّآ ۖ إِنَّكَ أَنتَ ٱلسَّمِيعُ ٱلْعَلِيمُ
And when Abraham and Ishmael were raising the foundations of the House, (Abraham prayed): Our Lord! Accept from us (this duty). Lo! Thou, only Thou, art the Hearer, the Knower.
Surah Al-Baqara(2:127)
Sahih al-Bukhari
Beginning of Creation
Chapter: If anyone says Amin [during the Salat (prayer) at the end of the recitation of Surat Al-Fatiha]
Narrated Samura:
The Prophet (ﷺ) said, "Last night I saw (in a dream) two men coming to me. One of them said, "The person who kindles the fire is Malik, the gate-keeper of the (Hell) Fire, and I am Gabriel, and this is Michael."
Sahih al-Bukhari 3236