Read the full story https://www.w3.org/blog/news/archives/6428

The Web Performance Working Group invites implementations of a revised Candidate Recommendation of High Resolution Time Level 2. This specification defines an API that provides the time origin, and current time in sub-millisecond resolution, such that it is not subject to system clock skew or adjustments. This publication updates the High Resolution Time Level 2 to include the material from the previous Working Draft of High Resolution Time Level 3. In practice, this bring the timeOrigin attribute into Level 2.