Well, the Hijri date 21 Rabi Al Awwal 1429 corresponds to the Gregorian date Saturday, 29 March 2008. This date lies in the third month of the Hijri year 1429 AH, which is Rabi Al-Awwal of 1429 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1429/03/21 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 29 March 2008 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rabi Al Awwal 1429 AH to its equivalent Gregorian date.
وَإِذَا لَقُوا۟ ٱلَّذِينَ ءَامَنُوا۟ قَالُوٓا۟ ءَامَنَّا وَإِذَا خَلَوْا۟ إِلَىٰ شَيَٰطِينِهِمْ قَالُوٓا۟ إِنَّا مَعَكُمْ إِنَّمَا نَحْنُ مُسْتَهْزِءُونَ
And when they fall in with those who believe, they say: We believe; but when they go apart to their devils they declare: Lo! we are with you; verily we did but mock.
Surah Al-Baqara(2:14)