Well, the Hijri date 15 Shawwal 1306 corresponds to the Gregorian date Friday, 14 June 1889. This date lies in the tenth month of the Hijri year 1306 AH, which is Shawwal of 1306 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1306/10/15 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 14 June 1889 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Shawwal 1306 AH to its equivalent Gregorian date.
بَلْ كَذَّبُوا۟ بِٱلْحَقِّ لَمَّا جَآءَهُمْ فَهُمْ فِىٓ أَمْرٍۢ مَّرِيجٍ
Nay, but they have denied the truth when it came unto them, therefor they are now in troubled case.
Surah Qaaf(50:5)