Temporal is an modern new API for Date related objects.
It introduced following classes in new API
- Plain Time classes: These classes helps to get plain time related without timezone
- PlainDateTime
 - PlainDate
 - PlainTime
 
 - ZonedDateTime class provides methods to get timezone and calendar
 
Current Javascript version contains Date object to get full year.
let currentDate = new Date();
let year = currentDate.getFullYear();
console.log(year);
With temporal,
- you can get PlainDate object
 - this object contains year property
 
 now = Temporal.now.plainDate();
 let year = now.year;
 console.log(year);
Some of the Examples
To Get Current Date and time in ISO format
Temporal.Now.plainDateTimeISO().toString()
to get plain TIme in ISO format
Temporal.Now.plainTimeISO().toString()