Shipping companies announce crucial deadlines for holiday shipping: "Time is running out"

As the countdown to Christmas narrows to just 10 days, the United States Postal Service is issuing a last call to holiday gift senders. The cutoff date for USPS first-class mail is set for Saturday — marking a crucial deadline to ensure gifts arrive in time for the festive season.

This December is especially busy for shipping companies. Around 82 million parcels are expected to be sent each day during this peak season. 

In Nashville, boxes are piling up at a facility called UPS Worldport, a key hub in the holiday shopping process where millions of packages will pass through during the holiday season. The 5.4 million square foot facility can sort about 416,000 packages per hour. The scene at the facility reflects the holiday rush.