Calculate the total length of a public YouTube playlist, see watch time at 1.25x, 1.5x, 1.75x and 2x speed, and plan daily viewing time. Free, no signup needed. YTPlayTime is a free toolkit for YouTube viewers, students, and creators. Calculate public playlist duration, compare watch time at different playback speeds, and plan study sessions. Explore tools for video duration, thumbnails, channel IDs, metadata, and creator earnings. No signup required.