The passages explicitly mention night and day, with different observations about their alternation and use.
إِنَّ فِى ٱخْتِلَـٰفِ ٱلَّيْلِ وَٱلنَّهَارِ وَمَا خَلَقَ ٱللَّهُ فِى ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ لَـَٔايَـٰتٍ لِّقَوْمٍ يَتَّقُونَ
Lo! in the difference of day and night and all that Allah hath created in the heavens and the earth are portents, verily, for folk who ward off (evil).
Marmaduke Pickthall · Quran 10:6
وَهُوَ ٱلَّذِى جَعَلَ ٱلَّيْلَ وَٱلنَّهَارَ خِلْفَةً لِّمَنْ أَرَادَ أَن يَذَّكَّرَ أَوْ أَرَادَ شُكُورًا
And He it is Who hath appointed night and day in succession, for him who desireth to remember, or desireth thankfulness.
Marmaduke Pickthall · Quran 25:62
وَمِنْ ءَايَـٰتِهِۦ مَنَامُكُم بِٱلَّيْلِ وَٱلنَّهَارِ وَٱبْتِغَآؤُكُم مِّن فَضْلِهِۦٓ ۚ إِنَّ فِى ذَٰلِكَ لَـَٔايَـٰتٍ لِّقَوْمٍ يَسْمَعُونَ
And of His signs is your slumber by night and by day, and your seeking of His bounty. Lo! herein indeed are portents for folk who heed.
Marmaduke Pickthall · Quran 30:23
