Priority delivery time is based on when USPS picks up your order from us. A normal order is processed in our facility within 48 hours (depending on order volume) of it being placed. It's then picked up by USPS. If you selected Priority 2-Day shipping, the delivery time may actually be 3 or 4 days depending on the processing time at our warehouse and USPS' processing time.
For any additional questions regarding your shipment, you can always contact us by emailing email@example.com or calling our customer support line 800-676-8109.