Well, the Hijri date 17 Dhul Hijjah 1421 corresponds to the Gregorian date Monday, 12 March 2001. This date lies in the twelfth month of the Hijri year 1421 AH, which is Dhu Al-Hijjah of 1421 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1421/12/17 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 12 March 2001 to its equivalent Arabic date.
The following is the conversion of the Arabic date 17 Dhul Hijjah 1421 AH to its equivalent Gregorian date.
قُلْ إِنْ أَدْرِىٓ أَقَرِيبٌۭ مَّا تُوعَدُونَ أَمْ يَجْعَلُ لَهُۥ رَبِّىٓ أَمَدًا
Say (O Muhammad, unto the disbelievers): I know not whether that which ye are promised is nigh, or if my Lord hath set a distant term for it.
Surah Al-Jinn(72:25)
Sahih al-Bukhari
Fasting
Chapter: Whoever does not give up lying speech while observing Saum
Narrated Abu Huraira:
The Prophet (ﷺ) said, "Whoever does not give up forged speech and evil actions, Allah is not in need of his leaving his food and drink (i.e. Allah will not accept his fasting.)"
Sahih al-Bukhari 1903