(54:46) But the Hour is their appointment [for due punishment], and the Hour is more disastrous and more bitter.
Muhammad Taqi-ud-Din al-Hilali and Muhammad Muhsin Khan,
(54:46) Nay, but the Hour is their appointed time (for their full recompense), and the Hour will be more grievous and more bitter.
Mohammed Marmaduke William Pickthall
(54:46) Nay, but the Hour (of doom) is their appointed tryst, and the Hour will be more wretched and more bitter (than their earthly failure).
Abdullah Yusuf Ali
(54:46) Nay, the Hour (of Judgment) is the time promised them (for their full recompense): And that Hour will be most grievous and most bitter.
Mohammad Habib Shakir
(54:46) Nay, the hour is their promised time, and the hour shall be most grievous and bitter.
Dr. Ghali
(54:46) No indeed, (but) the Hour is their appointment, and the Hour is more calamitous and more bitter.
Ali Unal
(54:46) Indeed, the Last Hour is their appointed time (for their complete recompense), and the Last Hour will be more grievous and more bitter.
Amatul Rahman Omar
(54:46) The (promised) Hour (of their complete discomfiture) is their appointed time. The fact is that the Hour will be grievously calamitous and most bitter.
Literal
(54:46) But the Hour/Resurrection (is) their appointment, and the Hour/Resurrection (is) more disastrous/catastrophic and more bitter/firmer .
Ahmed Ali
(54:46) Surely the Hour will be the moment of their promise, and that moment will be calamitous and distressing.
A. J. Arberry
(54:46) Nay, but the Hour is their tryst, and the Hour is very calamitous and bitter.
Abdul Majid Daryabadi
(54:46) Aye! the Hour is their appointed term, and the Hour shall be far more grievous and far more bitter.
Maulana Mohammad Ali
(54:46)-
Muhammad Sarwar
(54:46) In fact, the Hour of Doom is the time for them to suffer. The suffering of this hour is the most calamitous and the most bitter (of all suffering).
Hamid Abdul Aziz
(54:46) Nay, the Hour is their promised time, and the Hour shall be most grievous and bitter.
Faridul Haque
(54:46) In fact their promise is upon the Last Day – and the Last Day is very severe and very bitter!
Talal Itani
(54:46) The Hour is their appointed timethe Hour is more disastrous, and most bitter.
Ahmed Raza Khan
(54:46) In fact their promise is upon the Last Day and the Last Day is very severe and very bitter!
Wahiduddin Khan
(54:46) Indeed, the Hour of Doom is their appointed time, and the Last Hour will be the most severe, and the most bitter.
Safi-ur-Rahman al-Mubarakpuri
(54:46) Nay, but the Hour is their appointed time, and the Hour will be more grievous and more bitter.
Ali Quli Qarai
(54:46) Indeed, the Hour is their tryst; and the Hour will be most calamitous and bitter.
Hasan al-Fatih Qaribullah and Ahmad Darwish
(54:46) Rather, the Hour is their encounter. And that Hour will be most calamitous and bitter.
That is translated surah Al Qamar ayat 46 (QS 54: 46) in arabic and english text, may be useful.