Well, the Hijri date 1 Safar 1255 corresponds to the Gregorian date Monday, 15 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 Monday without any doubt. The Arabic date 1255/02/01 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 15 April 1839 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Safar 1255 AH to its equivalent Gregorian date.
يَوْمَ يَأْتِ لَا تَكَلَّمُ نَفْسٌ إِلَّا بِإِذْنِهِۦ ۚ فَمِنْهُمْ شَقِىٌّۭ وَسَعِيدٌۭ
On the day when it cometh no soul will speak except by His permission; some among them will be wretched, (others) glad.
Surah Hud(11:105)