| Name | When |
|---|---|
| National Burrito Day | Apr 1st Thu |
| Business of Popping Corn Day | Dec 2 |
| World Butter Chicken Day | Oct 20 |
| National Butter Day | Nov 17 |
| Butter Substitute Day | Jan 2 |
| National Butter Tart Day (Canada) | Jun 1 |
| Butterbrot Day (Germany) | Sep Last Fri |
| National Buttercrunch Day | Jan 20 |
| National Buttered Corn Day | Aug 23 |
| Buttered Popcorn Day | Aug 17 |
| National Buttermilk Biscuit Day | May 14 |
| National Butterscotch Brownie Day | May 9 |
| Butterscotch Cinnamon Pie Day | Sep 15 |
| National Butterscotch Pudding Day | Sep 19 |
| Buy a Doughnut Day | Oct 30 |
| National Buy a Loaf of Bread Day | Apr 12 |
| International Buy a Priest a Beer Day | Sep 9 |
| Buy a Regular Drink Day | Sep 10 |
| National Buy York Gin Day | Sep 18 |
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