Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The calendarId accessor property of Temporal.ZonedDateTime instances returns a string representing the calendar used to interpret the internal ISO 8601 date.
See Intl.supportedValuesOf() for a list of commonly supported calendar types.
The set accessor of calendarId is undefined. You cannot change this property directly. Use the withCalendar() method to create a new Temporal.ZonedDateTime object with the desired new value.