Well, the Hijri date 28 Shaban 1230 corresponds to the Gregorian date Friday, 4 August 1815. This date lies in the eighth month of the Hijri year 1230 AH, which is Shaban of 1230 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1230/08/28 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 August 1815 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Shaban 1230 AH to its equivalent Gregorian date.
وَلِسُلَيْمَٰنَ ٱلرِّيحَ غُدُوُّهَا شَهْرٌۭ وَرَوَاحُهَا شَهْرٌۭ ۖ وَأَسَلْنَا لَهُۥ عَيْنَ ٱلْقِطْرِ ۖ وَمِنَ ٱلْجِنِّ مَن يَعْمَلُ بَيْنَ يَدَيْهِ بِإِذْنِ رَبِّهِۦ ۖ وَمَن يَزِغْ مِنْهُمْ عَنْ أَمْرِنَا نُذِقْهُ مِنْ عَذَابِ ٱلسَّعِيرِ
And unto Solomon (We gave) the wind, whereof the morning course was a month's journey and the evening course a month's journey, and We caused the fount of copper to gush forth for him, and (We gave him) certain of the jinn who worked before him by permission of his Lord. And such of them as deviated from Our command, them We caused to taste the punishment of flaming Fire.
Surah Saba(34:12)