Well, the Hijri date 28 Shawwal 1406 corresponds to the Gregorian date Saturday, 5 July 1986. This date lies in the tenth month of the Hijri year 1406 AH, which is Shawwal of 1406 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1406/10/28 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 5 July 1986 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Shawwal 1406 AH to its equivalent Gregorian date.
تِلْكَ حُدُودُ ٱللَّهِ ۚ وَمَن يُطِعِ ٱللَّهَ وَرَسُولَهُۥ يُدْخِلْهُ جَنَّٰتٍۢ تَجْرِى مِن تَحْتِهَا ٱلْأَنْهَٰرُ خَٰلِدِينَ فِيهَا ۚ وَذَٰلِكَ ٱلْفَوْزُ ٱلْعَظِيمُ
These are the limits (imposed by) Allah. Whoso obeyeth Allah and His messenger, He will make him enter Gardens underneath which rivers flow, where such will dwell for ever. That will be the great success.
Surah An-Nisaa(4:13)
Sahih al-Bukhari
Merits of the Helpers in Madinah (Ansaar)
Chapter: The conversion of Salman Al-Farisi to Islam رضي الله عنه
Narrated Salman:
The interval between Jesus and Muhammad was six hundred years.
Sahih al-Bukhari 3948