Does Saterday count as a business day?

[Vicious]

Originally posted by isisCdXVi
Here's something I've always wondered about: mail isn't delivered to homes on Sundays, but is it still in transit? Is it still moving between cities and post offices?

Yes. My friends dad works for the post office and he said it does.

Also, Saturday is not a business day. Anytime something says like 3-5 business days or whatever, they are only counting Monday-Friday.