Well, the Hijri date 5 Ramadan 1411 corresponds to the Gregorian date Thursday, 21 March 1991. This date lies in the ninth month of the Hijri year 1411 AH, which is Ramadan of 1411 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1411/09/05 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 21 March 1991 to its equivalent Arabic date.
The following is the conversion of the Arabic date 5 Ramadan 1411 AH to its equivalent Gregorian date.
كُلُوا۟ وَٱشْرَبُوا۟ هَنِيٓـًٔۢا بِمَآ أَسْلَفْتُمْ فِى ٱلْأَيَّامِ ٱلْخَالِيَةِ
(And it will be said unto those therein): Eat and drink at ease for that which ye sent on before you in past days.
Surah Al-Haaqqa(69:24)