Well, the Hijri date 20 Rajab 1409 corresponds to the Gregorian date Sunday, 26 February 1989. This date lies in the seventh month of the Hijri year 1409 AH, which is Rajab of 1409 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1409/07/20 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 26 February 1989 to its equivalent Arabic date.
The following is the conversion of the Arabic date 20 Rajab 1409 AH to its equivalent Gregorian date.
فَإِنْ أَعْرَضُوا۟ فَمَآ أَرْسَلْنَٰكَ عَلَيْهِمْ حَفِيظًا ۖ إِنْ عَلَيْكَ إِلَّا ٱلْبَلَٰغُ ۗ وَإِنَّآ إِذَآ أَذَقْنَا ٱلْإِنسَٰنَ مِنَّا رَحْمَةًۭ فَرِحَ بِهَا ۖ وَإِن تُصِبْهُمْ سَيِّئَةٌۢ بِمَا قَدَّمَتْ أَيْدِيهِمْ فَإِنَّ ٱلْإِنسَٰنَ كَفُورٌۭ
But if they are averse, We have not sent thee as a warder over them. Thine is only to convey (the message). And lo! when We cause man to taste of mercy from Us he exulteth therefor. And if some evil striketh them because of that which their own hands have sent before, then lo! man is an ingrate.
Surah Ash-Shura(42:48)
Sahih al-Bukhari
Call to Prayers (Adhaan)
Chapter: (Saying of the) Tashah-hud in the last Rak'a
Narrated Shaqiq bin Salama:
`Abdullah said, "Whenever we prayed behind the Prophet (ﷺ) we used to recite (in sitting) 'Peace be on Gabriel, Michael, peace be on so and so. Once Allah's Messenger (ﷺ) looked back at us and said, 'Allah Himself is As-Salam (Peace), and if anyone of you prays then he should say, at-Tahiyatu li l-lahi wa ssalawatu wa t-taiyibat. As-salamu `alalika aiyuha n-Nabiyu wa rahmatu l-lahi wa barakatuh. Assalamu `alaina wa `ala `ibadi l-lahi s-salihin. (All the compliments, prayers and good things are due to Allah; peace be on you, O Prophet, and Allah's mercy and blessings [be on you]. Peace be on us an on the pious subjects of Allah). (If you say that, it will reach all the subjects in the heaven and the earth). Ash-hadu al-la ilaha illa l-lah, wa ash-hadu anna Muhammadan `Abduhu wa Rasuluh. (I testify that there is no Deity [worthy of worship] but Allah, and I testify that Muhammad is His slave and His Apostle).
Sahih al-Bukhari 831