Well, the Hijri date 20 Shawwal 1398 corresponds to the Gregorian date Friday, 22 September 1978. This date lies in the tenth month of the Hijri year 1398 AH, which is Shawwal of 1398 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1398/10/20 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 22 September 1978 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Shawwal 1398 AH to its equivalent Gregorian date.
إِنَّ هَٰذَا لَرِزْقُنَا مَا لَهُۥ مِن نَّفَادٍ
Lo! this in truth is Our provision, which will never waste away.
Surah Saad(38:54)