Well, the Hijri date 5 Rabi Al Thani 1399 corresponds to the Gregorian date Saturday, 3 March 1979. This date lies in the fourth month of the Hijri year 1399 AH, which is Rabi Al-Thani of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1399/04/05 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 3 March 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 5 Rabi Al Thani 1399 AH to its equivalent Gregorian date.
وَٱتَّخَذَ قَوْمُ مُوسَىٰ مِنۢ بَعْدِهِۦ مِنْ حُلِيِّهِمْ عِجْلًۭا جَسَدًۭا لَّهُۥ خُوَارٌ ۚ أَلَمْ يَرَوْا۟ أَنَّهُۥ لَا يُكَلِّمُهُمْ وَلَا يَهْدِيهِمْ سَبِيلًا ۘ ٱتَّخَذُوهُ وَكَانُوا۟ ظَٰلِمِينَ
And the folk of Moses, after (he left them), chose a calf (for worship), (made) out of their ornaments, of saffron hue, which gave a lowing sound. Saw they not that it spake not unto them nor guided them to any way? They chose it, and became wrong-doers.
Surah Al-A'raaf(7:148)
Sahih al-Bukhari
Call to Prayers (Adhaan)
Chapter: The necessity of saying the Takbir, i.e., Allahu Akbar (Allah is the Most Great) and the commencement of As-Salat (the prayer)
Narrated Anas bin Malik Al-Ansari:
Allah's Messenger (ﷺ) rode a horse and fell down and the right side of his body was injured. On that day he prayed one of the prayers sitting and we also prayed behind him sitting. When the Prophet (ﷺ) finished the prayer with Taslim, he said, "The Imam is to be followed and if he prays standing then pray standing, and bow when he bows, and raise your heads when he raises his head; prostrate when he prostrates; and if he says "Sami`a l-lahu liman hamidah", you should say, "Rabbana wa laka l-hamd.:
Sahih al-Bukhari 732