Do you not see that Allah causes the night to merge into the day and the day into the night, and has subjected the sun and the moon, each orbiting for an appointed term, and that Allah is All-Aware of what you do?

See you not (O Muhammad صلى الله عليه وسلم) that Allâh merges the night into the day (i.e. the decrease in the hours of the night are added to the hours of the day), and merges the day into the night (i.e. the decrease in the hours of day are added to the hours of night), and has subjected the sun and the moon, each running its course for a term appointed; and that Allâh is All-Aware of what you do.