Well, the Hijri date 18 Dhul Qidah 1426 corresponds to the Gregorian date Tuesday, 20 December 2005. This date lies in the eleventh month of the Hijri year 1426 AH, which is Dhu Al-Qidah of 1426 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1426/11/18 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 20 December 2005 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Dhul Qidah 1426 AH to its equivalent Gregorian date.
وَقَالُوا۟ يَٰٓأَيُّهَ ٱلسَّاحِرُ ٱدْعُ لَنَا رَبَّكَ بِمَا عَهِدَ عِندَكَ إِنَّنَا لَمُهْتَدُونَ
And they said: O wizard! Entreat thy Lord for us by the pact that He hath made with thee. Lo! we verily will walk aright.
Surah Az-Zukhruf(43:49)
Sahih al-Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Chapter: The sickness of the Prophet (saws) and his death
Narrated Aisha and Ibn `Abbas:
Abu Bakr kissed the Prophet (ﷺ) after his death.
Sahih al-Bukhari 4455, 4456, 4457