Well, the Hijri date 16 Safar 1255 corresponds to the Gregorian date Tuesday, 30 April 1839. This date lies in the second month of the Hijri year 1255 AH, which is Safar of 1255 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1255/02/16 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 30 April 1839 to its equivalent Arabic date.
The following is the conversion of the Arabic date 16 Safar 1255 AH to its equivalent Gregorian date.
أَمِ ٱتَّخَذُوا۟ مِن دُونِ ٱللَّهِ شُفَعَآءَ ۚ قُلْ أَوَلَوْ كَانُوا۟ لَا يَمْلِكُونَ شَيْـًۭٔا وَلَا يَعْقِلُونَ
Or choose they intercessors other than Allah? Say: What! Even though they have power over nothing and have no intelligence?
Surah Az-Zumar(39:43)