Well, the Hijri date 30 Shaban 1390 corresponds to the Gregorian date Friday, 30 October 1970. This date lies in the eighth month of the Hijri year 1390 AH, which is Shaban of 1390 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1390/08/30 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 30 October 1970 to its equivalent Arabic date.
The following is the conversion of the Arabic date 30 Shaban 1390 AH to its equivalent Gregorian date.
۞ وَوَٰعَدْنَا مُوسَىٰ ثَلَٰثِينَ لَيْلَةًۭ وَأَتْمَمْنَٰهَا بِعَشْرٍۢ فَتَمَّ مِيقَٰتُ رَبِّهِۦٓ أَرْبَعِينَ لَيْلَةًۭ ۚ وَقَالَ مُوسَىٰ لِأَخِيهِ هَٰرُونَ ٱخْلُفْنِى فِى قَوْمِى وَأَصْلِحْ وَلَا تَتَّبِعْ سَبِيلَ ٱلْمُفْسِدِينَ
And when We did appoint for Moses thirty nights (of solitude), and added to them ten, and he completed the whole time appointed by his Lord of forty nights; and Moses said unto his brother, Aaron: Take my place among the people. Do right, and follow not the way of mischief-makers.
Surah Al-A'raaf(7:142)
Sahih al-Bukhari
Merits of the Helpers in Madinah (Ansaar)
Chapter: The death of An-Najashi (the Negus)
Abu Huraira further said:
"Allah's Messenger (ﷺ) made them (i.e. the Muslims) stand in rows at the Musalla (i.e. praying place) and led the funeral prayer for the Negus and said four Takbir."
Sahih al-Bukhari 3881