Well, the Hijri date 25 Ramadan 1406 corresponds to the Gregorian date Monday, 2 June 1986. This date lies in the ninth month of the Hijri year 1406 AH, which is Ramadan of 1406 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1406/09/25 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 2 June 1986 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Ramadan 1406 AH to its equivalent Gregorian date.
۞ يَسْـَٔلُونَكَ عَنِ ٱلْخَمْرِ وَٱلْمَيْسِرِ ۖ قُلْ فِيهِمَآ إِثْمٌۭ كَبِيرٌۭ وَمَنَٰفِعُ لِلنَّاسِ وَإِثْمُهُمَآ أَكْبَرُ مِن نَّفْعِهِمَا ۗ وَيَسْـَٔلُونَكَ مَاذَا يُنفِقُونَ قُلِ ٱلْعَفْوَ ۗ كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَكُمُ ٱلْءَايَٰتِ لَعَلَّكُمْ تَتَفَكَّرُونَ
They question thee about strong drink and games of chance. Say: In both is great sin, and (some) utility for men; but the sin of them is greater than their usefulness. And they ask thee what they ought to spend. Say: that which is superfluous. Thus Allah maketh plain to you (His) revelations, that haply ye may reflect.
Surah Al-Baqara(2:219)
Sahih al-Bukhari
Witnesses
Chapter: How to swear?
Narrated Talha bin 'Ubaidullah:
A man came to Allah's Messenger (ﷺ) asking him about Islam, Allah's Messenger (ﷺ) said, "You have to offer five compulsory prayers in a day and a night (24 hours)." The man asked, "Is there any more compulsory prayers for me?" Allah's Messenger (ﷺ) said, "No, unless you like to offer Nawafil (i.e. optional prayers)." Allah's Messenger (ﷺ) then added, "You have to observe fasts during the month of Ramadan." The man said, "Am I to fast any other days?' Allah's Messenger (ﷺ) said, "No, unless you wish to observe the optional fast voluntarily." Then Allah's Messenger (ﷺ) told him about the compulsory Zakat. The man asked, "Do I have to give anything besides?" Allah's Messenger (ﷺ) said, "No, unless you wish to give in charity voluntarily." So, the man departed saying, "By Allah I will neither do more nor less than that." Allah's Messenger (ﷺ) said, "If he has said the truth he will be successful."
Sahih al-Bukhari 2678