Well, the Hijri date 15 Dhul Hijjah 1318 corresponds to the Gregorian date Thursday, 4 April 1901. This date lies in the twelfth month of the Hijri year 1318 AH, which is Dhu Al-Hijjah of 1318 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1318/12/15 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 4 April 1901 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Dhul Hijjah 1318 AH to its equivalent Gregorian date.
ثُمَّ جَعَلْنَٰكُمْ خَلَٰٓئِفَ فِى ٱلْأَرْضِ مِنۢ بَعْدِهِمْ لِنَنظُرَ كَيْفَ تَعْمَلُونَ
Then We appointed you viceroys in the earth after them, that We might see how ye behave.
Surah Yunus(10:14)