How long had Joseph been in Egypt when Isaac died?

When Isaac died at age 180, Joseph was 29 years old and had already been in Egypt for 12 years. He had been sold into slavery by his brothers at age 17, so the 12 years in Egypt align with that timeline.

Les explains that by the time Isaac dies at 180, Jacob and Esau are 120 years old, and Joseph is 29. Joseph had already been down in Egypt for 12 years because his brothers sold him into slavery when he was 17. Les also notes that 64 years after Joseph dies, Moses is born, helping to put the whole timeline together.

Why was Joseph already in Egypt for 12 years when Isaac died?

Joseph was already in Egypt for 12 years when Isaac died because his brothers sold him into slavery at age 17. By the time Isaac died at 180, Joseph was 29, meaning 12 years had passed since the sale. The context ties this to the coat of many colors incident.