Well, the Hijri date 20 Dhul Qidah 1284 corresponds to the Gregorian date Friday, 13 March 1868. This date lies in the eleventh month of the Hijri year 1284 AH, which is Dhu Al-Qidah of 1284 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1284/11/20 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 13 March 1868 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Dhul Qidah 1284 AH to its equivalent Gregorian date.
قُلْ أَرَءَيْتُم مَّا تَدْعُونَ مِن دُونِ ٱللَّهِ أَرُونِى مَاذَا خَلَقُوا۟ مِنَ ٱلْأَرْضِ أَمْ لَهُمْ شِرْكٌۭ فِى ٱلسَّمَٰوَٰتِ ۖ ٱئْتُونِى بِكِتَٰبٍۢ مِّن قَبْلِ هَٰذَآ أَوْ أَثَٰرَةٍۢ مِّنْ عِلْمٍ إِن كُنتُمْ صَٰدِقِينَ
Say (unto them, O Muhammad): Have ye thought on all that ye invoke beside Allah? Show me what they have created of the earth. Or have they any portion in the heavens? Bring me a scripture before this (Scripture), or some vestige of knowledge (in support of what ye say), if ye are truthful.
Surah Al-Ahqaf(46:4)