Well, the Hijri date 10 Safar 1421 corresponds to the Gregorian date Sunday, 14 May 2000. This date lies in the second month of the Hijri year 1421 AH, which is Safar of 1421 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1421/02/10 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 14 May 2000 to its equivalent Arabic date.
The following is the conversion of the Arabic date 10 Safar 1421 AH to its equivalent Gregorian date.
قَالُوٓا۟ إِنَّا تَطَيَّرْنَا بِكُمْ ۖ لَئِن لَّمْ تَنتَهُوا۟ لَنَرْجُمَنَّكُمْ وَلَيَمَسَّنَّكُم مِّنَّا عَذَابٌ أَلِيمٌۭ
(The people of the city) said: We augur ill of you. If ye desist not, we shall surely stone you, and grievous torture will befall you at our hands.
Surah Yaseen(36:18)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
The Statement of Allah the Most High: "Nay, but the Hour is their appointed time (for their full recompense), and the Hour will be more grievous and more bitter." (V.54:46)
Narrated Ibn `Abbas:
While in his tent on the day the Battle of Badr, the Prophet (ﷺ) said, "O Allah! I request You (to fulfill) Your promise and contract. O Allah! It You wish that the Believers be destroyed). You will never be worshipped henceforth." On that, Abu Bakr held the Prophet (ﷺ) by the hand and said, "That is enough, O Allah's Messenger (ﷺ)! You have appealed to your Lord too pressingly" The Prophet (ﷺ) was wearing his armor and then went out reciting: 'Their multitude will be put to flight and they will show their backs. Nay, but the Hour is their appointed time (for their full recompense), and the Hour will be more previous and most bitter.' (54.45-46)
Sahih al-Bukhari 4877