Well, the Hijri date 20 Rajab 1370 corresponds to the Gregorian date Thursday, 26 April 1951. This date lies in the seventh month of the Hijri year 1370 AH, which is Rajab of 1370 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1370/07/20 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 26 April 1951 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rajab 1370 AH to its equivalent Gregorian date.
وَنَزَعْنَا مَا فِى صُدُورِهِم مِّنْ غِلٍّۢ تَجْرِى مِن تَحْتِهِمُ ٱلْأَنْهَٰرُ ۖ وَقَالُوا۟ ٱلْحَمْدُ لِلَّهِ ٱلَّذِى هَدَىٰنَا لِهَٰذَا وَمَا كُنَّا لِنَهْتَدِىَ لَوْلَآ أَنْ هَدَىٰنَا ٱللَّهُ ۖ لَقَدْ جَآءَتْ رُسُلُ رَبِّنَا بِٱلْحَقِّ ۖ وَنُودُوٓا۟ أَن تِلْكُمُ ٱلْجَنَّةُ أُورِثْتُمُوهَا بِمَا كُنتُمْ تَعْمَلُونَ
And We remove whatever rancour may be in their hearts. Rivers flow beneath them. And they say: The praise to Allah, Who hath guided us to this. We could not truly have been led aright if Allah had not guided us. Verily the messengers of our Lord did bring the Truth. And it is cried unto them: This is the Garden. Ye inherit it for what ye used to do.
Surah Al-A'raaf(7:43)