Well, the Hijri date 4 Rajab 1378 corresponds to the Gregorian date Tuesday, 13 January 1959. This date lies in the seventh month of the Hijri year 1378 AH, which is Rajab of 1378 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1378/07/04 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 13 January 1959 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Rajab 1378 AH to its equivalent Gregorian date.
وَٱلْأَرْضَ مَدَدْنَٰهَا وَأَلْقَيْنَا فِيهَا رَوَٰسِىَ وَأَنۢبَتْنَا فِيهَا مِن كُلِّ زَوْجٍۭ بَهِيجٍۢ
And the earth have We spread out, and have flung firm hills therein, and have caused of every lovely kind to grow thereon,
Surah Qaaf(50:7)
Sahih al-Bukhari
Oneness, Uniqueness of Allah (Tawheed)
Chapter: The Prophet (saws) inviting his followers to Tauhid of Allah
Narrated Ibn 'Abbas (ra):
The Prophet (ﷺ) sent Mu'adh to Yemen.
Sahih al-Bukhari 7371