Costco Dog Advent Calendar 2025 Dates. The costco advent calendar for dogs is now available online. This includes 8 dog toys and 16 dog treats!

Costco has a new bark dog advent calendar that includes eight toys and 16 treats for your pup to count down to christmas. Advent 2025 begins on sunday, november 30th, starting the celebration season for the birth of jesus christ with the advent season ending on the first mass of christmas(vigil.