And on the Day when the Hour will be established, that Day

﴿وَيَوۡمَ تَقُومُ ٱلسَّاعَةُ يَوۡمَئِذٖ يَتَفَرَّقُونَ ﴾
[الرُّوم: 14]

And on the Day when the Hour will be established, that Day shall (all men) be separated (i.e. the believers will be separated from the disbelievers)

﴿ويوم تقوم الساعة يومئذ يتفرقون﴾ [الرُّوم: 14]

Al Bilal Muhammad Et Al
On the day the hour will be established, that day all people will be sorted out

Ali Bakhtiari Nejad
And on a day that the hour establishes, on that day they are divided

Ali Quli Qarai
The day the Hour sets in, they will be divided on that day [in separate groups]

Ali Unal
When the Last Hour stands forth (and the Judgment is established) – on that Day all people will be separated from one another

Hamid S Aziz
In the Day when the Hour shall come, at that Day they shall be separated

John Medows Rodwell
And on that day when the Hour shall arrive, shall men be separated one from another

Literal
And a day/time the Hour/Resurrection starts , (on) that day they separate

Mir Anees Original
And on the day the hour of doom will be established, on that day they will be divided

Mir Aneesuddin
And on the day the hour of doom will be established, on that day they will be divided