Unlike traditional paper planners, this reusable calendar tracks the passing of time through overlapping, manually rotatable disks. You align the separate concentric rings behind the laser-cut viewing slots to change the displayed details dynamically:
• The inner ring shifts the days of the week (e.g., "FRI")
• The middle ring modifies the months of the year (e.g., "JUN")
• The outermost ring tracks the date number (e.g., "3")