NORTH DAKOTA (KXNET) — As the holiday season hits the final and busiest stretch, delivery drivers and mail carriers are working to ensure millions of packages arrive on time. If you're planning on shipping across the state or country, there are some important dates you need to know so that your presents arrive on time. The postal service's website shows that 85 million packages are delivered daily during this holiday season. December 16 is the busiest day of the year at Minot's UPS store. Leaders there said if you are shipping across the country packages need to be shipped no later than December 16. The sooner packages are shipped out the better chance you have of an on-time delivery, which will also save you money. They also said being prepared when you walk in to ship and planning ahead of time is helpful for you, the staff, and your packages. "Be prepared to maybe stand in line for a little bit, that's just this time of year anywhere you go whether it's stores or places like us to ship," explained Marshall Knaup, the manager of Minot's UPS Store. "But as far as any hints, have the address ready. That way we don't have to wait for you to look it up. Just things like that to be prepared and ready to roll. We have boxes, mailers, everything like that for you here that you can use and purchase if need be." The USPS is not shipping to Canada. The Canadian Union of Postal Workers is currently on strike, demanding higher wages. More than 55,000 Canadian postal workers have been on strike since November 15. UPS and Fed Ex, however, will still deliver to Canada. Holiday shipping deadlines for USPS, UPS, and FedEx are as follows: USPS USPS Ground Advantage — Dec. 18. First-class Mail — Dec. 18. Priority Mail — Dec. 19. Priority Mail Express — Dec. 21. For Alaska and Hawaii, the USPS deadlines are: USPS Ground Advantage — Dec. 16 First-class Mail — Dec. 18 Priority Mail — Dec. 19 Priority Mail Express — Dec. 20 For Air/Army, Fleet, and Diplomatic Post Office shipping deadlines: First-class Mail — Dec. 9 Priority Mail — Dec. 9 Priority Mail Express Military — Dec. 16 (not available for 093 ZIP codes For a full list of international shipping deadlines, visit USPS.com. UPS UPS U.S. domestic deadlines UPS 3 Day Select — Dec. 19. UPS 2nd Day Air — Dec. 20. UPS Next Day Air — Dec. 23. For UPS domestic ground shipping, use UPS's shipping calculator to determine deadlines. For a full list of international shipping deadlines, visit UPS.com. FedEx FedEx Ground 5-day shipping — Dec. 17. 4-day shipping — Dec. 18 3-day shipping — Dec. 19. 2-day shipping — Dec. 20. 1-day shipping — Dec. 23. FedEx Home Delivery 5-day shipping — Dec. 17. 4-day shipping — Dec. 18. 2-3-day shipping — Dec. 20. 1-day shipping — Dec. 23. For a full list of international shipping deadlines, visit FedEx.com. Close Thanks for signing up! Watch for us in your inbox. Subscribe Now Today's Top Stories SIGN UP NOW