Well, the Hijri date 6 Dhul Hijjah 1378 corresponds to the Gregorian date Friday, 12 June 1959. This date lies in the twelfth month of the Hijri year 1378 AH, which is Dhu Al-Hijjah of 1378 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1378/12/06 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 12 June 1959 to its equivalent Arabic date.
The following is the conversion of the Arabic date 6 Dhul Hijjah 1378 AH to its equivalent Gregorian date.
وَحَآجَّهُۥ قَوْمُهُۥ ۚ قَالَ أَتُحَٰٓجُّوٓنِّى فِى ٱللَّهِ وَقَدْ هَدَىٰنِ ۚ وَلَآ أَخَافُ مَا تُشْرِكُونَ بِهِۦٓ إِلَّآ أَن يَشَآءَ رَبِّى شَيْـًۭٔا ۗ وَسِعَ رَبِّى كُلَّ شَىْءٍ عِلْمًا ۗ أَفَلَا تَتَذَكَّرُونَ
His people argued with him. He said: Dispute ye with me concerning Allah when He hath guided me? I fear not at all that which ye set up beside Him unless my Lord willeth aught. My Lord includeth all things in His knowledge. Will ye not then remember?
Surah Al-An'aam(6:80)
Sahih al-Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Chapter: Ghazwa of Khaibar
Narrated Al-Bara' and Ibn Abi `Aufa:
On the day of Khaibar when the cooking pots were put on the fire, the Prophet (ﷺ) said, "Turn the cooking pots upside down."
Sahih al-Bukhari 4223, 4224