The nanosecond accessor property of Temporal.PlainTime instances returns a integer from 0 to 999 representing the nanosecond (10-9 second) component of this time.

The round() method of Temporal.Instant instances returns a new Temporal.Instant object representing this instant rounded to the given unit.

The equals() method of Temporal.Instant instances returns true if this instant is equivalent in value to another instant (in a form convertible by Temporal.Instant.from()), and false otherwise. They are compared by their epochNanoseconds. It is equivalent to Temporal.Instant.compare(this, other) === 0.

The monthCode accessor property of Temporal.ZonedDateTime instances returns a calendar-specific string representing the month of this date. It is calendar-dependent.

The Temporal.PlainDateTime.compare() static method returns a number (-1, 0, or 1) indicating whether the first date-time comes before, is the same as, or comes after the second date-time. Equivalent to first comparing their dates, then comparing their times if the dates are the same.

The toLocaleString() method of Temporal.PlainMonthDay instances returns a string with a language-sensitive representation of this month-day. In implementations with Intl.DateTimeFormat API support, this method delegates to Intl.DateTimeFormat.

The calendarId accessor property of Temporal.PlainDateTime instances returns a string representing the calendar used to interpret the internal ISO 8601 date.

The nanosecond accessor property of Temporal.ZonedDateTime instances returns a integer from 0 to 999 representing the nanosecond (10-9 second) component of this time.

The year accessor property of Temporal.PlainYearMonth instances returns an integer representing the number of years of this year-month relative to the start of a calendar-specific epoch year. It is calendar-dependent.

The dayOfWeek accessor property of Temporal.PlainDate instances returns a positive integer representing the 1-based day index in the week of this date. Days in a week are numbered sequentially from 1 to daysInWeek, with each number mapping to its name. It is calendar-dependent. 1 usually represents Monday in the calendar, even when locales using the calendar may consider a different day as the first day of the week (see Intl.Locale.prototype.getWeekInfo()).