unless the item was sent priority mail or express mail all other forms of mailing are delayed.
It took four days for a package to go from the main hub to my little post office. 14 miles of road travel and typically depending on arrival to the main hub its the same day.
Arrived at 2 am which is typical and it sat there until I filed a complaint four days later.
Normally my stuff arrives to the main up the evening of the day before its delivered.