diff --git a/timer/script.js b/timer/script.js
new file mode 100644
index 0000000..20c6c5b
--- /dev/null
+++ b/timer/script.js
@@ -0,0 +1,102 @@
+let countdownInterval;
+
+function formatTime(ms) {
+  const totalSeconds = Math.ceil(ms / 1000);
+  const m = Math.floor(totalSeconds / 60).toString().padStart(2, '0');
+  const s = (totalSeconds % 60).toString().padStart(2, '0');
+  return `${m}:${s}`;
+}
+
+function getRandomAlarmSound() {
+  const sounds = [
+    'alarm.mp3',
+    'alarm2.mp3',
+    'alarm3.mp3',
+    'alarm4.mp3',
+    'alarm5.mp3',
+    'alarm6.mp3'
+  ];
+  const randomIndex = Math.floor(Math.random() * sounds.length);
+  return sounds[randomIndex];
+}
+
+function setAlarm() {
+  const timeStr = document.getElementById('timeInput').value;
+  const message = document.getElementById('messageInput').value;
+  const status = document.getElementById('status');
+  const alarmSound = document.getElementById('alarmSound');
+
+  const parts = timeStr.split(':');
+  if (parts.length !== 2 || isNaN(parts[0]) || isNaN(parts[1])) {
+    alert("Please enter time in MM:SS format.");
+    return;
+  }
+
+  const minutes = parseInt(parts[0], 10);
+  const seconds = parseInt(parts[1], 10);
+  const totalMs = (minutes * 60 + seconds) * 1000;
+
+  if (totalMs <= 0) {
+    alert("Please enter a time greater than 0.");
+    return;
+  }
+
+  clearInterval(countdownInterval);
+
+  const endTime = Date.now() + totalMs;
+
+  const soundFileInput = document.getElementById('soundFileInput');
+  if (soundFileInput.files.length === 0) {
+    alarmSound.src = getRandomAlarmSound();
+  }
+
+  if (Notification.permission !== "granted") {
+    Notification.requestPermission();
+  }
+
+  countdownInterval = setInterval(() => {
+    const remaining = endTime - Date.now();
+    if (remaining <= 0) {
+      clearInterval(countdownInterval);
+      document.title = "⏰ Time to do whatever you need to do";
+      status.textContent = "⏰ Time to do whatever you need to do";
+      return;
+    }
+    const formatted = formatTime(remaining);
+    document.title = `⏳ ${formatted}`;
+    status.textContent = `Time remaining: ${formatted}`;
+  }, 1000);
+
+  setTimeout(() => {
+    const remaining = endTime - Date.now();
+    const formatted = formatTime(remaining);
+    document.title = `⏳ ${formatted}`;
+    status.textContent = `Time remaining: ${formatted}`;
+  }, 0);
+
+  setTimeout(() => {
+    clearInterval(countdownInterval);
+    alarmSound.play();
+
+    if (Notification.permission === "granted") {
+      new Notification("⏰ Time to do whatever you need to do", { body: message });
+    } else {
+      alert("Timer: " + message);
+    }
+
+    status.textContent = "⏰ Time to do whatever you need to do";
+    document.title = "Milky the Milk Carton says:";
+  }, totalMs);
+}
+
+const soundFileInput = document.getElementById('soundFileInput');
+soundFileInput.addEventListener('change', function () {
+  const file = this.files[0];
+  if (file) {
+    const audioURL = URL.createObjectURL(file);
+    const alarmSound = document.getElementById('alarmSound');
+    alarmSound.src = audioURL;
+    alarmSound.load();
+    document.getElementById('status').textContent = `✅ This will play once time is up: ${file.name}`;
+  }
+});