How long should i cook this recipe?

so my the original size recipe was 8 and i divided by 4 to make it 2

and the orignal recipe called to cook it for 6 to 7 hours in the crock pot.

should i still cook for that long here is the recipe:

here is the recipe divided by 4 to make 2

1/3 pounds of boneless skinless chicken breast

1/2 cups of carrots peeled and chopped

1/4 medium yellow onion diced

3/4 stalks of celery chopped

3-4 cloves of garlic minced

3/4 tablespoon of olive oil

1/8 teaspoon of dried thyme

1/4 of bay leaf

1 1/2 cups of chicken broth

1/4 cup of water

a little bit of salt and pepper

1/2 uncooked of whole wheat wide egg noodles

3/4 tablespoons of chopped fresh parsley

Should i do still cook it for 6 to 7 hours or shorter since i divided it?