How to display random text at random time automatically

<p class="custom-notification-content">
            Someone from
   <script>var Country = ['Edmonton, Canada', 'California, United States', 'New Jersey, United States','Birmingham, United Kingdom', 'Melbourne, Australia', 'Paris, France'];
var randCountry = Country[Math.floor(Math.random() * Country.length)];
document.write(randCountry);</script>

             <br>Purchased <b>

            <script>var randNumber = Math.floor(Math.random() * 9) + 1; document.write(randNumber);</script><script>var Zeros = ['0', '00', '000'];
var randZeros = Zeros[Math.floor(Math.random() * Zeros.length)];
document.write(randZeros);</script></b>

<script>var Product = ['apple','grapes','comb','hat'];
var randProduct = Product[Math.floor(Math.random() * Product.length)];
document.write(randProduct);</script>   

            <small>(<script>var randNumber = Math.floor(Math.random() * 5) + 2; document.write(randNumber);</script> hours ago)</small>
          </p>

    <p class="custom-notification-content">
      Someone from <span id="country"></span><br />
      Purchased <span id="product"></span> (<span id="hours"></span> hours ago)
    </p>

    <script>
      // Helper functions
      var randomNumberBetween = (min, max) =>
        min + Math.floor(Math.random() * max);
      var pickRandomItemFromArray = array =>
        array[randomNumberBetween(0, array.length - 1)];

      // Datas
      var timeBetweenUpdates = 2000;
      var countries = [
        "Edmonton, Canada",
        "California, United States",
        "New Jersey, United States",
        "Birmingham, United Kingdom",
        "Melbourne, Australia",
        "Paris, France"
      ];
      var products = ["apple", "grapes", "comb", "hat"];

      // Dynamic elements
      var countryTextElement = document.querySelector("#country");
      var productTextElement = document.querySelector("#product");
      var hoursTextElement = document.querySelector("#hours");

      // Update texts function
      var updateTexts = () => {
        countryTextElement.innerText = pickRandomItemFromArray(countries);
        productTextElement.innerText = pickRandomItemFromArray(products);
        hoursTextElement.innerText = randomNumberBetween(1, 48);
      };

      // First update
      updateTexts();

      // Interval updates
      setInterval(() => {
        updateTexts();
      }, timeBetweenUpdates);
    </script>