Well, the Hijri date 21 Rabi Al Thani 1390 corresponds to the Gregorian date Thursday, 25 June 1970. This date lies in the fourth month of the Hijri year 1390 AH, which is Rabi Al-Thani of 1390 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1390/04/21 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 25 June 1970 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rabi Al Thani 1390 AH to its equivalent Gregorian date.
وَإِنَّ مِنكُمْ لَمَن لَّيُبَطِّئَنَّ فَإِنْ أَصَٰبَتْكُم مُّصِيبَةٌۭ قَالَ قَدْ أَنْعَمَ ٱللَّهُ عَلَىَّ إِذْ لَمْ أَكُن مَّعَهُمْ شَهِيدًۭا
Lo! among you there is he who loitereth; and if disaster overtook you, he would say: Allah hath been gracious unto me since I was not present with them.
Surah An-Nisaa(4:72)
Sahih al-Bukhari
Drinks
Chapter: Silver utensils
Narrated Um Salama:
(the wife of the Prophet) Allah's Messenger (ﷺ) said, "He who drinks in silver utensils is only filling his `Abdomen with Hell Fire."
Sahih al-Bukhari 5634