Well, the Hijri date 3 Safar 1400 corresponds to the Gregorian date Saturday, 22 December 1979. This date lies in the second month of the Hijri year 1400 AH, which is Safar of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1400/02/03 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 22 December 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 3 Safar 1400 AH to its equivalent Gregorian date.
حَتَّىٰٓ إِذَا جَآءَ أَمْرُنَا وَفَارَ ٱلتَّنُّورُ قُلْنَا ٱحْمِلْ فِيهَا مِن كُلٍّۢ زَوْجَيْنِ ٱثْنَيْنِ وَأَهْلَكَ إِلَّا مَن سَبَقَ عَلَيْهِ ٱلْقَوْلُ وَمَنْ ءَامَنَ ۚ وَمَآ ءَامَنَ مَعَهُۥٓ إِلَّا قَلِيلٌۭ
(Thus it was) till, when Our commandment came to pass and the oven gushed forth water, We said: Load therein two of every kind, a pair (the male and female), and thy household, save him against whom the word hath gone forth already, and those who believe. And but a few were they who believed with him.
Surah Hud(11:40)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
The Statement of Allah the Exalted: "Glorified (and Exalted) is He (Allah) [above all that (evil) they associate with Him], Who took His slave (Muḥammad pbuh) for a Journey by Night from Al-Masjid-al-Ḥarām (at Makkah) to Al-Masjid-al-Aqsā (in Jerusalem)..." (V.17:1)
Narrated Jabir bin `Abdullah:
The Prophet (ﷺ) said, "When the Quraish disbelieved me (concerning my night journey), I stood up in Al- Hijr (the unroofed portion of the Ka`ba) and Allah displayed Bait-ul-Maqdis before me, and I started to inform them (Quraish) about its signs while looking at it."
Sahih al-Bukhari 4710