timer-website/timer_website.html at main · zabo1992-ctrl/timer-website · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Simple Timer</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      background: #f5f5f5;
    }
    .timer-container {
      background: white;
      padding: 30px;
      border-radius: 20px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      text-align: center;
      width: 300px;
    }
    #display {
      font-size: 3rem;
      margin-bottom: 20px;
    }
    button {
      padding: 10px 20px;
      margin: 5px;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      font-size: 1rem;
    }
  </style>
</head>
<body>
  <div class="timer-container">
    <div id="display">00:00:00</div>
    <button onclick="startTimer()">Start</button>
    <button onclick="stopTimer()">Stop</button>
    <button onclick="resetTimer()">Reset</button>
  </div>

  <script>
    let seconds = 0;
    let interval = null;

    function updateDisplay() {
      let hrs = String(Math.floor(seconds / 3600)).padStart(2, '0');
      let mins = String(Math.floor((seconds % 3600) / 60)).padStart(2, '0');
      let secs = String(seconds % 60).padStart(2, '0');
      document.getElementById('display').textContent = `${hrs}:${mins}:${secs}`;
    }

    function startTimer() {
      if (!interval) {
        interval = setInterval(() => {
          seconds++;
          updateDisplay();
        }, 1000);
      }
    }

    function stopTimer() {
      clearInterval(interval);
      interval = null;
    }

    function resetTimer() {
      stopTimer();
      seconds = 0;
      updateDisplay();
    }
  </script>
</body>
</html>