Well, the Hijri date 11 Rabi Al Awwal 1400 corresponds to the Gregorian date Monday, 28 January 1980. This date lies in the third month of the Hijri year 1400 AH, which is Rabi Al-Awwal of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1400/03/11 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 28 January 1980 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Rabi Al Awwal 1400 AH to its equivalent Gregorian date.
وَأَنفِقُوا۟ مِن مَّا رَزَقْنَٰكُم مِّن قَبْلِ أَن يَأْتِىَ أَحَدَكُمُ ٱلْمَوْتُ فَيَقُولَ رَبِّ لَوْلَآ أَخَّرْتَنِىٓ إِلَىٰٓ أَجَلٍۢ قَرِيبٍۢ فَأَصَّدَّقَ وَأَكُن مِّنَ ٱلصَّٰلِحِينَ
And spend of that wherewith We have provided you before death cometh unto one of you and he saith: My Lord! If only thou wouldst reprieve me for a little while, then I would give alms and be among the righteous.
Surah Al-Munaafiqoon(63:10)
Sahih al-Bukhari
Laws of Inheritance (Al-Faraa'id)
Chapter: “Our property is not to be inherited, and whatever we leave is Sadaqa.”
Narrated `Urwa:
`Aisha said, "When Allah's Messenger (ﷺ) died, his wives intended to send `Uthman to Abu Bakr asking him for their share of the inheritance." Then `Aisha said to them, "Didn't Allah's Messenger (ﷺ) say, 'Our (Apostles') property is not to be inherited, and whatever we leave is to be spent in charity?'"
Sahih al-Bukhari 6730