﴿ خَلَقَ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضَ بِٱلْحَقِّ ۖ يُكَوِّرُ ٱلَّيْلَ عَلَى ٱلنَّهَارِ وَيُكَوِّرُ ٱلنَّهَارَ عَلَى ٱلَّيْلِ ۖ وَسَخَّرَ ٱلشَّمْسَ وَٱلْقَمَرَ ۖ كُلٌّۭ يَجْرِى لِأَجَلٍۢ مُّسَمًّى ۗ أَلَا هُوَ ٱلْعَزِيزُ ٱلْغَفَّٰرُ ﴾

“He it is who has created the heavens and the earth in accordance with [an inner] truth. He causes the night to flow into the day, and causes the day to flow into the night; and He has made the sun and the moon subservient [to His laws], each running its course for a term set [by Him]. Is not He the Almighty, the All-Forgiving?”

Please check ayah 39:6 for complete tafsir.