Genesis 37:2 (KJV)

2 These are the generations of Jacob. Joseph, being seventeen years old, was feeding the flock with his brethren; and the lad was with the sons of Bilhah, and with the sons of Zilpah, his father's wives: and Joseph brought unto his father their evil report

‘Generations of Jacob’ is followed by subsequent generations described later in the passage. This is not the very first of the generations (Adam was) so Jacob  is not  acknowledged as being ‘created ‘ or given the importance  of  ‘in the day’.