The Bible goes on to describe what God did during a series of creative days. These are not 24 - hour days but are epochs.
فَفِي ٱلْيَومِ ٱلْخَلْقِيِّ ٱلْأَوَّلِ ،‏ جَعَلَ يَهْوَهُ ٱلنُّورَ يَبْدَأُ بِٱلظُّهُورِ عَلَى وَجْهِ ٱلْأَرْضِ .‏