Well, the Hijri date 3 Safar 1386 corresponds to the Gregorian date Monday, 23 May 1966. This date lies in the second month of the Hijri year 1386 AH, which is Safar of 1386 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1386/02/03 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 23 May 1966 to its equivalent Arabic date.
The following is the conversion of the Arabic date 3 Safar 1386 AH to its equivalent Gregorian date.
۞ وَوَٰعَدْنَا مُوسَىٰ ثَلَٰثِينَ لَيْلَةًۭ وَأَتْمَمْنَٰهَا بِعَشْرٍۢ فَتَمَّ مِيقَٰتُ رَبِّهِۦٓ أَرْبَعِينَ لَيْلَةًۭ ۚ وَقَالَ مُوسَىٰ لِأَخِيهِ هَٰرُونَ ٱخْلُفْنِى فِى قَوْمِى وَأَصْلِحْ وَلَا تَتَّبِعْ سَبِيلَ ٱلْمُفْسِدِينَ
And when We did appoint for Moses thirty nights (of solitude), and added to them ten, and he completed the whole time appointed by his Lord of forty nights; and Moses said unto his brother, Aaron: Take my place among the people. Do right, and follow not the way of mischief-makers.
Surah Al-A'raaf(7:142)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: Tawaf of the Ka'bah on reaching Makkah
Narrated `Abdullah bin `Umar:
When Allah's Messenger (ﷺ) performed Tawaf of the Ka`ba for Hajj or `Umra, he used to do Ramal during the first three rounds, and in the last four rounds he used to walk; then after the Tawaf he used to offer two rak`at and then performed Tawaf between Safa and Marwa.
Sahih al-Bukhari 1616