1. 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`.

  2. Internationalization API

    Locale-sensitive collation (string comparison), number formatting, and date and time formatting.

  3. htmlinputelement api: showpicker: `datetime-local` input

  4. htmlmodelement api: datetime

  5. htmltimeelement api: datetime

  6. html element: del: datetime

  7. html element: input: `type="datetime-local"`

  8. html element: ins: datetime

  9. html element: time: datetime

  10. javascript built-in: intl: datetimeformat

  11. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor

  12. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: supports normative optional `chaindatetimeformat` behavior

  13. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `locales` parameter

  14. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter

  15. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.calendar` parameter

  16. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.datestyle` parameter

  17. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.dayperiod` parameter

  18. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.fractionalseconddigits` parameter

  19. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.hourcycle` parameter

  20. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.numberingsystem` parameter

  21. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.timestyle` parameter

  22. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.timezonename` parameter

  23. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.timezonename` parameter: `shortgeneric`/`longgeneric`/`shortoffset`/`longoffset` as `options.timezonename` option

  24. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.timezone` parameter

  25. javascript built-in: intl: datetimeformat: `datetimeformat()` constructor: `options` parameter: `options.timezone` parameter: iana time zone names in `options.timezone` option

  26. javascript built-in: intl: datetimeformat: format

  27. javascript built-in: intl: datetimeformat: formatrange

  28. javascript built-in: intl: datetimeformat: formatrangetoparts

  29. javascript built-in: intl: datetimeformat: formattoparts

  30. javascript built-in: intl: datetimeformat: resolvedoptions

  31. javascript built-in: intl: datetimeformat: resolvedoptions: computed `timezone`

  32. javascript built-in: intl: datetimeformat: supportedlocalesof

  33. javascript built-in: temporal api: temporal.plaindatetime interface

  34. javascript built-in: temporal api: temporal.plaindatetime interface: temporal.plaindatetime.add()

  35. javascript built-in: temporal api: temporal.plaindatetime interface: temporal.plaindatetime.day

  36. javascript built-in: temporal api: temporal.plaindatetime interface: temporal.plaindatetime.era

  37. javascript built-in: temporal api: temporal.plaindatetime interface: temporal.plaindatetime.hour

  38. javascript built-in: temporal api: temporal.plaindatetime interface: temporal.plaindatetime.minute

  39. javascript built-in: temporal api: temporal.plaindatetime interface: temporal.plaindatetime.month

  40. javascript built-in: temporal api: temporal.plaindatetime interface: temporal.plaindatetime.year

  41. javascript built-in: temporal api: temporal.timezone interface: temporal.timezone.getplaindatetimefor()

  42. javascript built-in: temporal api: temporal.zoneddatetime interface

  43. javascript built-in: temporal api: temporal.zoneddatetime interface: temporal.zoneddatetime.add()

  44. javascript built-in: temporal api: temporal.zoneddatetime interface: temporal.zoneddatetime.day

  45. javascript built-in: temporal api: temporal.zoneddatetime interface: temporal.zoneddatetime.era

  46. javascript built-in: temporal api: temporal.zoneddatetime interface: temporal.zoneddatetime.from()

  47. javascript built-in: temporal api: temporal.zoneddatetime interface: temporal.zoneddatetime.hour

  48. javascript built-in: temporal api: temporal.zoneddatetime interface: temporal.zoneddatetime.month

  49. javascript built-in: temporal api: temporal.zoneddatetime interface: temporal.zoneddatetime.with()

  50. javascript built-in: temporal api: temporal.zoneddatetime interface: temporal.zoneddatetime.year