If I select overnight shipping when I place my order, will that guarantee that I will receive my order the following day?

Selecting overnight shipping at checkout means that you will receive your order one business day after it ships, however it does not guarantee that your order will ship the same day the order is placed. Typically orders ship within 2-5 business days after the order has been placed. The same goes for 2-day shipping. Selecting 2-day shipping will not guarantee that your order will arrive 2 days after the order is placed, but it will arrive 2 days after the shipped date.