When was Joseph in the bible born?

Joseph's birth is recorded in Genesis 29:22, after a long recitation of the rivalry of sisters' Rachel and Leah for his father Jacob's affections. All of Joseph's brothers, with the exception of Benjamin, were born before Joseph

From counting up years over the course of Genesis, Chapters 29-47, we can make an educated guess that Jacob was somewhere between 93 and 103 years at Joseph's birth, in keeping with the statement that Jacob was in his old age.