Well, the Hijri date 1 Rajab 1378 corresponds to the Gregorian date Saturday, 10 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 Saturday without any doubt. The Arabic date 1378/07/01 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 10 January 1959 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Rajab 1378 AH to its equivalent Gregorian date.
وَإِنَّهُۥ لَعِلْمٌۭ لِّلسَّاعَةِ فَلَا تَمْتَرُنَّ بِهَا وَٱتَّبِعُونِ ۚ هَٰذَا صِرَٰطٌۭ مُّسْتَقِيمٌۭ
And lo! verily there is knowledge of the Hour. So doubt ye not concerning it, but follow Me. This is the right path.
Surah Az-Zukhruf(43:61)
Sahih al-Bukhari
Al-Adha Festival Sacrifice (Adaahi)
Chapter: Whoever slaughters his sacrifice before the 'Eid prayer should repeat it
Narrated Al-Bara':
One day Allah's Messenger (ﷺ) offered the `Id prayer and said, "Whoever offers our prayer and faces our Qibla should not slaughter the sacrifice till he finishes the `Id prayer." Abu Burda bin Niyar got up and said, "O Allah's Messenger (ﷺ)! I have already done it. The Prophet (ﷺ) said, "That is something you have done before its due time." Abu Burda said, "I have a Jadha'a which is better than two old sheep; shall I slaughter it?" The Prophet (ﷺ) said, "Yes, but it will not be sufficient for anyone after you."
Sahih al-Bukhari 5563