The 'Wasn't This Leaf Green Before?' meme is a relatable format used to capture the sudden, often jarring realization that time is moving faster than expected. Typically resurfacing at the start of autumn, the meme uses the visual metaphor of a leaf changing color to represent a broader sense of surprise at how quickly a season or situation has transformed. It taps into the universal human experience of being caught off guard by the inevitable transition of the year. Social media users frequently employ this template to joke about the end of summer vacations, the rapid approach of the holiday season, or the general feeling of getting older as the world changes around them.