The American Civil Liberties Union (ACLU) is a nonpartisan, non-profit organization whose stated mission is to defend and preserve the individual rights and liberties guaranteed to every person in this country by the Constitution and laws of the United States..
Timeframe. The United States Postal Services reports that as of January 2011, it takes an average of one to three days for First-Class Mail to arrive at its destination. Priority Mail takes an average of one to two days to arrive, according to the USPS. USPS only includes the time a package stays in transit in their estimations. Packages dropped off at a post office during business hours usually leave that day. Packages dropped off after hours may take an additional day.
Within the 48 contiguous states, First Class is up to four days normally. Priority mail is usually two days but can be one or three. A very few will take longer. Surface parcels or Media Mail can be two to eight or so days dependent on distance. Destination matters. Local is faster. Mail to another country is much longer and cannot be planned.