<header>
  <h2 class="title">Date.prototype.setHours()</h2>
  <p class="description">Метод, який дозволяє встановлювати годину для вказаної дати.</p>
</header>
<main>
  <div class="result">
    <label for="hours">Встановити годину (0-23):</label>
    <input type="number" id="hours" min="0" max="23" value="12">
    <button onclick="updateTime()">Встановити</button>
    <p>Поточний час: <span id="displayTime"></span></p>
  </div>
</main>

body {
  font-size: 16px;
  line-height: 1.5;
  font-family: monospace;
}

header {
  background-color: #f1f1f1;
  margin-bottom: 25px;
  padding: 15px;
  -webkit-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  -moz-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
}

header h2.title {
  padding-bottom: 15px;
  border-bottom: 1px solid #999;
}

header p.description {
  font-style: italic;
  color: #222;
}

.result {
  background-color: #f8f8f8;
  padding: 15px;
  -webkit-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  -moz-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
}

document.getElementById("displayTime").innerText = new Date().toLocaleTimeString();

function updateTime() {
  let chosenHour = parseInt(document.getElementById("hours").value);
  let currentDate = new Date();
  currentDate.setHours(chosenHour);
  document.getElementById("displayTime").innerText = currentDate.toLocaleTimeString();
}

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