the day it is dropped off to the PO is not counted as a shipping day. the correct wording should be days in transit. i have several friends that work for the USPS and 2 are post masters.I count Thursday as a ship day since it actually left the vendor and is in the USPS's hands. Thursday, Friday, Sat is 3 days and typicall day that I usually get my items if ordered by Thrusday prior to 2pm. Today would put me at 5 days (well 4 really since Sunday is excluded). In other words, my package didn't arrive in the 3 days that I paid for it to.
I'm being a little .... about it but hey, my expecation was not met or exceeded going by my past experiences. JS!