Definition
Markers placed within a video or audio file that indicate specific points in the content, enabling viewers to navigate directly to sections of interest. On YouTube, timestamps in the video description create clickable chapter markers that appear in the progress bar, improving viewer experience and reducing drop-off for longer content. For creators, timestamps serve multiple functions: improving accessibility for viewers seeking specific information, signaling content structure to search algorithms, and reducing friction for viewers who want to revisit specific sections. Timestamps are a simple but high-impact optimization for long-form content.