setTimeout for this.state vs useState

When I use class component, I have code:

setTimeout(() => console.log(this.state.count), 5000);

When I use hook:

const [count, setCount] = useState(0);
setTimeout(() => console.log(count), 5000);

If I trigger setTimeout then change the count to 1 before the timeout (5000ms), class component will console.log(1) (the newest value), and for useState it is console.log(0) (value when register timeout).
Why does this happen?

from setTimeout for this.state vs useState