How long does it take for a letter, from Hawaii, to reach Rhode Island? -

Someone told me about a week, but does that 7 days include weekends, or just business days?

First class, #10 envelope and not over 1 ounce takes about 3-4 days (not including sundays).

My grandparents live in Connecticut and it takes about a week - not including weekends - for my mail to get here. They always call me from the post office to let me know to be expecting mail.