Timestamp Webkit is a versatile Chrome add-on designed to simplify time conversions and calculations directly from your browser's toolbar. This free tool allows users to convert epoch timestamps into human-readable date formats and vice versa with ease. Simply paste a Unix timestamp in seconds or milliseconds to see the corresponding date and time. Additionally, users can input date strings in the format YYYY-MM-DD hh:mm:ss.sss to receive an epoch timestamp, streamlining the conversion process without the need to visit external websites.

Beyond simple conversions, Timestamp Webkit offers functionality to calculate durations between two time points, accommodating multiple input formats. Users can enter full dates or partial times, such as '5:00' or '1:10:03.234', as well as epochs. The tool also allows users to convert seconds into larger time units like years, months, weeks, and more. This comprehensive suite of features makes Timestamp Webkit a valuable addition for anyone needing quick and accessible time-related calculations.