Well, the Hijri date 29 Dhul Hijjah 1338 corresponds to the Gregorian date Sunday, 12 September 1920. This date lies in the twelfth month of the Hijri year 1338 AH, which is Dhu Al-Hijjah of 1338 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1338/12/29 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 12 September 1920 to its equivalent Arabic date.
The following is the conversion of the Arabic date 29 Dhul Hijjah 1338 AH to its equivalent Gregorian date.
لَوْ أَنزَلْنَا هَٰذَا ٱلْقُرْءَانَ عَلَىٰ جَبَلٍۢ لَّرَأَيْتَهُۥ خَٰشِعًۭا مُّتَصَدِّعًۭا مِّنْ خَشْيَةِ ٱللَّهِ ۚ وَتِلْكَ ٱلْأَمْثَٰلُ نَضْرِبُهَا لِلنَّاسِ لَعَلَّهُمْ يَتَفَكَّرُونَ
If We had caused this Qur'an to descend upon a mountain, thou (O Muhammad) verily hadst seen it humbled, rent asunder by the fear of Allah. Such similitudes coin We for mankind that haply they may reflect.
Surah Al-Hashr(59:21)