M.C.
Hi. I know that there are some daycares that offer full day Kindergarten. It would cost you money vs going to public school, but then you'd either need to quit your job or have afternoon daycare anyway. If they attend a private Kindergarten, when its time for first grade, they can take a test to show the school system that they are ready for 1st grade, and then you skip public Kindergarten all together.
I know that Minnieland, and Children of America have private Kindergarten classes in their daycares. I think Chesterbrook Academy does also.
Good luck
M.