Well, the Hijri date 4 Dhul Hijjah 1380 corresponds to the Gregorian date Thursday, 18 May 1961. This date lies in the twelfth month of the Hijri year 1380 AH, which is Dhu Al-Hijjah of 1380 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1380/12/04 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 18 May 1961 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Dhul Hijjah 1380 AH to its equivalent Gregorian date.
لَّوْلَا كِتَٰبٌۭ مِّنَ ٱللَّهِ سَبَقَ لَمَسَّكُمْ فِيمَآ أَخَذْتُمْ عَذَابٌ عَظِيمٌۭ
Had it not been for an ordinance of Allah which had gone before, an awful doom had come upon you on account of what ye took.
Surah Al-Anfaal(8:68)
Sahih al-Bukhari
Al-Adha Festival Sacrifice (Adaahi)
Chapter: The legal way of Al-Udhiya
Narrated Al-Bara:
The Prophet (ﷺ) said (on the day of Idal-Adha), "The first thing we will do on this day of ours, is to offer the (`Id) prayer and then return to slaughter the sacrifice. Whoever does so, he acted according to our Sunna (tradition), and whoever slaughtered (the sacrifice) before the prayer, what he offered was just meat he presented to his family, and that will not be considered as Nusak (sacrifice)." (On hearing that) Abu Burda bin Niyar got up, for he had slaughtered the sacrifice before the prayer, and said, "I have got a six month old ram." The Prophet (ﷺ) said, 'Slaughter it (as a sacrifice) but it will not be sufficient for any-one else (as a sacrifice after you). Al-Bara' added: The Prophet (ﷺ) said, "Whoever slaughtered (the sacrifice) after the prayer, he slaughtered it at the right time and followed the tradition of the Muslims."
Sahih al-Bukhari 5545