Delivery estimates are calculated by taking the estimated shipping date and adding the transit time (the time it takes a package to travel from shipping carrier to your destination address), based on the shipping speed you've chosen. The transit time is calculated using business days, meaning Saturday and Sunday don't count toward the transit time (unless we've specifically offered a weekend delivery during checkout). Holidays are also taken into account when calculating the transit time.
Note: If you live in an area experiencing an unexpected service delay (severe weather, natural disasters, unscheduled events, etc.), please add at least 2 to 3 business days to the estimated delivery date of your order. In some cases, choosing a higher quantity for an item may make it ineligible for immediate shipping, because multiple units may not be available locally or at the same location. In this case, the option to choose One-Day Delivery may not appear.