The Prophet ﷺ said: Friday is divided into twelve hours. Amongst them there is an hour in which a Muslim does not ask Allah for anything but He gives it to him. So seek it in the last hour after the afternoon prayer.  

عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ قَالَ يَوْمُ الْجُمُعَةِ ثِنْتَا عَشْرَةَ يُرِيدُ سَاعَةً لاَ يُوجَدُ مُسْلِمٌ يَسْأَلُ اللَّهَ ﷻ شَيْئًا إِلاَّ آتَاهُ اللَّهُ ﷻ فَالْتَمِسُوهَا آخِرَ سَاعَةٍ بَعْدَ الْعَصْرِ  

‘Abd Allah b. ‘Umar said to me: Did you hear your father narrating a tradition from the Messenger of Allah ﷺ about an hour on Friday (when supplication is accepted by Allah)? I said: Yes, I heard it. I heard the Messenger of Allah ﷺ say: This hour is found during the period when the imam is seated (for giving Friday sermon) until the prayer is finished. Abu Dawud said: By sitting is meant sitting on the pulpit.  

عَنْ رَسُولِ اللَّهِ ﷺ فِي شَأْنِ الْجُمُعَةِ يَعْنِي السَّاعَةَ قَالَ قُلْتُ نَعَمْ سَمِعْتُهُ يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ هِيَ مَا بَيْنَ أَنْ يَجْلِسَ الإِمَامُ إِلَى أَنْ تُقْضَى الصَّلاَةُ