Bismillaah:

Allaah عزوجل said:

" Those who have earned the Garden [Paradise] on that day will be better in their home and happier in their place of noonday rest”

{ Al-Furqaan /24 }

Imam Jalaal ud Deen al Mahaali رحمه الله commented:

" [ The believers ] will have a better resting place than the disbelievers had in this world in which to rest at midday. It is deduce from this that the reckoning will end in the middle of the day, as reported in the hadeeth. "

{ Tafsir al Jalaalayn }

Al Alaamah Muhammad al Halabi حفظه الله commented:

This aayah indicates that the reckoning will be completed in half a day, because al-maqeel [ noonday rest ] refers to a siesta or rest from the heat of mid-day. Among those who said that the reckoning will be completed in half a day are Ibn ‘Abbaas, Ibn Mas’ood, Ikrimah and Ibn Jubayr.

{ Daf Ayhaam pg 172 }

Abu Hurayrah رضي الله عنه relates:

The Prophet صلي الله عليه وسلم said:

“For the believers, the (length of) the Day of Resurrection will be like the time between Zuhr and Asr.”

Takhreej:

{ Imam Al Hakim in his Mustadrak and graded as Saheeh by Shaykh al Albaani رحمه الله}

Al Alaamah Muhammad al Halabi said:

[ This is ] another clear indication that the reckoning of the believer on the Day of Resurrection will be easy.

{ Saheeh Al Jaami As Sagheer , Majmu Al fataawa }

*** And Allaah عزوجل knows best ***