Constant time tracking?

Question

React

Good time of the day, please tell me how you can constantly track the time, I have half of the application tied to time, now I just have
const time = new Date (), but the problem is that the time is written to the constant at the entrance and is not updated further, you need keep an eye on him

Answer 1

I think you should use setInterval

const [dateTime, setDateTime] = useState(new Date());
    useEffect(() => {
        const id = setInterval(() => setDateTime(new Date()), 1000);
        return () => {
            clearInterval(id);
        }
    }, []);