Well, the Hijri date 16 Safar 1491 corresponds to the Gregorian date Wednesday, 18 April 2068. This date lies in the second month of the Hijri year 1491 AH, which is Safar of 1491 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1491/02/16 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 18 April 2068 to its equivalent Arabic date.
The following is the conversion of the Arabic date 16 Safar 1491 AH to its equivalent Gregorian date.
أَمْ لَهُمْ نَصِيبٌۭ مِّنَ ٱلْمُلْكِ فَإِذًۭا لَّا يُؤْتُونَ ٱلنَّاسَ نَقِيرًا
Or have they even a share in the Sovereignty? Then in that case, they would not give mankind even the speck on a date-stone.
Surah An-Nisaa(4:53)