Note: Each shipping "day" is a full 24 hour day, so a package shipped Monday to the yellow 1 Day zone will arrive on Tuesday.  Also note that Saturday, Sunday and other holidays are not counted as days, so a package shipped on Monday to the orange 5 Day zone will arrive the following Monday (Tuesday is day 1, Wednesday is day 2, Thursday day 3, Friday day 4 and the next Monday is day 5).