// Prints 0
print (Time.time);
// Waits 5 seconds
yield WaitForSeconds (5);
// Prints 5.0
print (Time.time);

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    IEnumerator Example() {
        print(Time.time);
        yield return new WaitForSeconds(5);
        print(Time.time);
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def Example() as IEnumerator:
        print(Time.time)
        yield WaitForSeconds(5)
        print(Time.time)