1. console.time and console.timeEnd

    Functions for measuring performance

  2. CSS @scroll-timeline

    CSS property that allows animations to be driven by a container's scroll position

  3. High Resolution Time API

    Method to provide the current time in sub-millisecond resolution and such that it is not subject to system clock skew or adjustments. Called using `performance.now()`

  4. HTML5 semantic elements

    HTML5 offers some new elements, primarily for semantic purposes. The elements include: `section`, `article`, `aside`, `header`, `footer`, `nav`, `figure`, `figcaption`, `time`, `mark` & `main`.

  5. Date and time input types

    Form field widgets to easily allow users to enter a date, time or both, generally by using a calendar/time input widget. Refers to supporting the following input types: `date`, `time`, `datetime-local`, `month` & `week`.

  6. Temporal

    A modern API for working with date and time, meant to supersede the original `Date` API.

  7. abortsignal api: `timeout()` static method

  8. animation api: timeline

  9. audiodata api: timestamp

  10. blobevent api: timecode

  11. console api: `timeend()` static method

  12. console api: `timelog()` static method

  13. console api: `timestamp()` static method

  14. console api: `time()` static method

  15. document api: timeline

  16. encodedaudiochunk api: timestamp

  17. encodedvideochunk api: timestamp

  18. event api: timestamp

  19. gamepad api: timestamp

  20. geolocationposition api: timestamp

  21. idledeadline api: timeremaining

  22. intersectionobserverentry api: time

  23. notification api: timestamp

  24. performance api: timeorigin

  25. rtcencodedaudioframe api: timestamp

  26. rtcencodedvideoframe api: timestamp

  27. sensor api: timestamp

  28. sourcebuffer api: timestampoffset

  29. sourcebuffer api: timestampoffset: available in workers

  30. timeevent api

  31. timeevent api: detail

  32. timeevent api: view

  33. timeranges api

  34. timeranges api: end

  35. timeranges api: length

  36. timeranges api: start

  37. videoframe api: timestamp

  38. vrframedata api: timestamp

  39. xmlhttprequest api: timeout

  40. xmlhttprequest api: `timeout` event

  41. css property: timeline-scope

  42. css property: timeline-scope: all

  43. css property: timeline-scope: none

  44. css property: view-timeline

  45. css property: view-timeline-axis

  46. css property: view-timeline-inset

  47. css property: view-timeline-name

  48. types: <time>

  49. types: <time-percentage>

  50. html element: time