A price calendar is a tool used by businesses and consumers to track and compare the prices of goods or services over a specific period of time. It typically displays the fluctuation of prices in a visual format, allowing users to easily identify patterns and make informed purchasing decisions. Price calendars can be found online or in physical form, and are often used by travelers to plan their trips based on the most cost-effective dates. They are also utilized by retailers to strategically adjust their prices and promotions according to market trends and competition. In short, a price calendar serves as a valuable resource for individuals and businesses alike in navigating the ever-changing landscape of pricing.