You Say It’s Your Birthday? is a mobile app that helps users celebrate birthdays, anniversaries, or special dates based on the original weekday they occurred—not just the calendar date. Users input a meaningful date (like a birthday or wedding anniversary), and the app calculates the weekday that event originally happened on (e.g., Thursday, Dec 20, 1970), then displays the next six years when that same weekday occurs near that date 365 days later.