Surah Al-Isra, ayah 12

وَجَعَلۡنَا ٱلَّيۡلَ وَٱلنَّهَارَ ءَايَتَيۡنِۖ فَمَحَوۡنَآ ءَايَةَ ٱلَّيۡلِ وَجَعَلۡنَآ ءَايَةَ ٱلنَّهَارِ مُبۡصِرَةٗ لِّتَبۡتَغُواْ فَضۡلٗا مِّن رَّبِّكُمۡ وَلِتَعۡلَمُواْ عَدَدَ ٱلسِّنِينَ وَٱلۡحِسَابَۚ وَكُلَّ شَيۡءٖ فَصَّلۡنَٰهُ تَفۡصِيلٗا ١٢

Waja'alnal-layla wan-nahāra āyatayni famahawnā āyatal-layli waja'alnā āyatan-nahāri mubsiratal litabtaghū fadlam mir rabbikum walita'lamū 'adadas-sinīna wal-hisāba wakulla shay'in fassalnāhu tafsīlā

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 visible⁷³¹ 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.