These keywords are trending because "National Sandwich Day," observed annually on November 3rd, is a widely recognized informal holiday that celebrates the popular food item: the sandwich.

Here's a breakdown of the reasons:

• A reason to celebrate (and eat!): People enjoy celebrating various "national days" as a fun way to acknowledge common interests, and sandwiches are a beloved and versatile food for many.
• Deals and discounts: Restaurants and sandwich shops use National Sandwich Day as a significant marketing opportunity. They offer special promotions, discounts, and freebies to attract customers, boost sales, and create excitement. Consumers are actively searching for these "sandwich deals" to take advantage of the offers.
• Specific brand interest: Many popular chains, like Jersey Mike's, Subway, and Jimmy John's, participate by offering their own unique deals, leading people to search for "Jersey Mike's National Sandwich Day" or similar brand-specific queries to find out what their favorite places are offering.
• General awareness and planning: Searches like "what national day is today" indicate a general curiosity, which can lead people to discover it's National Sandwich Day and then look for ways to celebrate, often by seeking out deals. Furthermore, "National Sandwich Day 2025" suggests that people are looking ahead to plan for future celebrations or simply confirm the date for the next year.