Well, the Hijri date 12 Dhul Qidah 1378 corresponds to the Gregorian date Tuesday, 19 May 1959. This date lies in the eleventh month of the Hijri year 1378 AH, which is Dhu Al-Qidah of 1378 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1378/11/12 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 19 May 1959 to its equivalent Arabic date.
The following is the conversion of the Arabic date 12 Dhul Qidah 1378 AH to its equivalent Gregorian date.
وَٱللَّهُ يَعْلَمُ مَا تُسِرُّونَ وَمَا تُعْلِنُونَ
Surah An-Nahl(16:19)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
Narrated Abu Huraira:
The Prophet (ﷺ) said, "There is no believer but I, of all the people, I am the closest to him both in this world and in the Hereafter. Recite if you wish: 'The Prophet (ﷺ) is closer to the believers than their own selves.' (33.6) so if a believer (dies) leaves some property then his relatives will inherit that property; but if he is in debt or he leaves poor children, let those (creditors and children) come to me (that I may pay the debt and provide for the children), for them I am his sponsor (surely).
Sahih al-Bukhari 4781