Well, the Hijri date 13 Shawwal 1421 corresponds to the Gregorian date Monday, 8 January 2001. This date lies in the tenth month of the Hijri year 1421 AH, which is Shawwal of 1421 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1421/10/13 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 8 January 2001 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Shawwal 1421 AH to its equivalent Gregorian date.
وَإِذَا تُتْلَىٰ عَلَيْهِ ءَايَٰتُنَا وَلَّىٰ مُسْتَكْبِرًۭا كَأَن لَّمْ يَسْمَعْهَا كَأَنَّ فِىٓ أُذُنَيْهِ وَقْرًۭا ۖ فَبَشِّرْهُ بِعَذَابٍ أَلِيمٍ
And when Our revelations are recited unto him he turneth away in pride as if he heard them not, as if there were a deafness in his ears. So give him tidings of a painful doom.
Surah Luqman(31:7)
Sahih al-Bukhari
Prayer at Night (Tahajjud)
Chapter: To perform a long prostration in the Tahajjud
Narrated `Aisha:
Allah's Messenger (ﷺ) used to offer eleven rak`at and that was his prayer. He used to prolong the prostration to such an extent that one could recite fifty verses (of the Qur'an) before he would lift his head. He used to pray two rak`at (Sunna) before the Fajr prayer and then used to lie down on his right side till the call-maker came and informed him about the prayer.
Sahih al-Bukhari 1123
