Well, the Hijri date 5 Safar 1420 corresponds to the Gregorian date Thursday, 20 May 1999. This date lies in the second month of the Hijri year 1420 AH, which is Safar of 1420 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1420/02/05 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 20 May 1999 to its equivalent Arabic date.
The following is the conversion of the Arabic date 5 Safar 1420 AH to its equivalent Gregorian date.
وَلَقَدْ نَعْلَمُ أَنَّهُمْ يَقُولُونَ إِنَّمَا يُعَلِّمُهُۥ بَشَرٌۭ ۗ لِّسَانُ ٱلَّذِى يُلْحِدُونَ إِلَيْهِ أَعْجَمِىٌّۭ وَهَٰذَا لِسَانٌ عَرَبِىٌّۭ مُّبِينٌ
And We know well that they say: Only a man teacheth him. The speech of him at whom they falsely hint is outlandish, and this is clear Arabic speech.
Surah An-Nahl(16:103)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: "Al-'Aqiq is a blessed valley."
Narrated Musa bin `Uqba:
Salim bin `Abdullah's father said, "The Prophet (ﷺ) said that while resting in the bottom of the valley at Muarras in Dhul-Hulaifa, he had been addressed in a dream: 'You are verily in a blessed valley.' " Salim made us to dismount from our camels at the place where `Abdullah used to dismount, aiming at the place where Allah's Messenger (ﷺ) had rested and it was below the Mosque situated in the middle of the valley in between them (the residence) and the road.
Sahih al-Bukhari 1535