And We have established the night and the day as two symbols; and thereupon We have effaced the symbol of night and set up [in its place] the light giving symbol of day, so that you might seek to obtain your Sustainer's bounty and be aware of the passing years and of the reckoning [that is bound to come]. For clearly, most clearly, have We spelt out everything!

We have made the Night and the Day as two (of Our) Signs: the Sign of the Night have We obscured, while the Sign of the Day We have made to enlighten you; that ye may seek bounty from your Lord, and that ye may know the number and count of the years: all things have We explained in detail.

And We appoint the night and the day two portents. Then We make dark the portent of the night, and We make the portent of the day sight-giving, that ye may seek bounty from your Lord, and that ye may know the computation of the years, and the reckoning; and everything have We expounded with a clear expounding.

And We made the night and the day two signs, then We have made the sign of the night to pass away and We have made the sign of the day manifest, so that you may seek grace from your Lord, and that you may know the numbering of years and the reckoning. And We have explained everything with distinctness.

And We have made the night and day two signs, and We erased the sign of the night and made the sign of the day visible that you may seek bounty from your Lord and may know the number of years and the account [of time]. And everything We have set out in detail.