Genesis (1:1-2:4a
In the first creation account in Genesis (1:1-2:4a - up to first sentence of 2:4), creation took six days, after which God rested. Genesis says that the ocean was already present and a wind moved across the surface. The seas rested on the dry land. The order of creation was given as:
Notice that the light of day was not yet understood to have originated from the sun, although the sun was universally understood to rule the day. That is why it was possible to have grass and trees before the sun was created.
There was pre-existing dry land, but God had yet to make it rain for plants to grow.
In this account, there is no timescale provided for creation. Creation of fish is not mentioned.
The second account could scarcely be different from the first. It is usually the first which is thought of for creation of the world and all living creatures in six days, while the second is looked to for creation of humans.
It may seem surprising that, in both creation stories, the basics were already there - the waters, the dry land, the wind and therefore the air. Many experts in Hebrew have carefully examined the texts and confirm that this is what they say. The biblical creations were not ex nihilo.