He causes the night to enter the day, and He causes the day to enter the night and has subjected the sun and the moon - each running [its course] for a specified term. That is Allāh, your Lord; to Him belongs sovereignty. And those whom you invoke other than Him do not possess [as much as] the membrane of a date seed.
قِطۡمِيرٍ(as much as) the membrane of a date-seedqiṭ'mīrin
Tafsir
Allah enters the night into the day so it becomes longer and He enters the day into night so it becomes longer. And He made the sun and the moon subservient, each one of them travels in its appointed orbit until a fixed time which only Allah knows, which is the day of judgment. He who fixes all of that and carries it out is Allah your Lord. To Him alone belongs the kingdom. And the idols you worship besides Him do not even possess the thin membrane over the datestone, so how do you worship them besides Me?