diff --git a/Sprint-3/alarmclock/alarmclock.js b/Sprint-3/alarmclock/alarmclock.js
index 6ca81cd3b..feb4aeac3 100644
--- a/Sprint-3/alarmclock/alarmclock.js
+++ b/Sprint-3/alarmclock/alarmclock.js
@@ -1,4 +1,63 @@
-function setAlarm() {}
+let countdownInterval;
+
+function setAlarm() {
+ const input = document.getElementById("alarmSet");
+ let seconds = Number(input.value);
+
+ // Validation: Check if the input is a valid positive number
+ if (isNaN(seconds) || seconds <= 0) {
+ alert("Please enter a valid positive number for seconds.");
+ return; // Stop the function if the input is invalid
+ }
+
+ updateAlarmDisplay(seconds);
+
+ // Change the background color to green when the timer starts
+ document.body.style.backgroundColor = "green";
+
+ // Clear any existing interval
+ clearInterval(countdownInterval);
+
+ countdownInterval = window.setInterval(() => {
+ seconds--;
+ if (seconds <= 0) {
+ clearInterval(countdownInterval);
+ updateAlarmDisplay(0);
+ // Change the background color to red when alarm hits zero
+ document.body.style.backgroundColor = "red";
+ playAlarm(); // Assuming you have a playAlarm function defined elsewhere
+ } else {
+ updateAlarmDisplay(seconds);
+ }
+ }, 1000);
+}
+
+function updateAlarmDisplay(seconds) {
+ const display = document.getElementById("timeRemaining");
+ const minutes = Math.floor(seconds / 60)
+ .toString()
+ .padStart(2, "0");
+ const secs = (seconds % 60).toString().padStart(2, "0");
+ display.textContent = `Time Remaining: ${minutes}:${secs}`;
+}
+
+function stopAlarm() {
+ // Clear the countdown interval
+ clearInterval(countdownInterval);
+ countdownInterval = null;
+
+ // Reset the background color and the displayed time
+ document.body.style.backgroundColor = "";
+ updateAlarmDisplay(0); // Reset to 00:00
+}
+
+// Add event listeners to buttons
+document.getElementById("set").addEventListener("click", setAlarm);
+document.getElementById("stop").addEventListener("click", stopAlarm);
+
+window.setAlarm = setAlarm;
+window.updateAlarmDisplay = updateAlarmDisplay;
+window.stopAlarm = stopAlarm;
// DO NOT EDIT BELOW HERE
diff --git a/Sprint-3/alarmclock/index.html b/Sprint-3/alarmclock/index.html
index 48e2e80d9..f216bb2a0 100644
--- a/Sprint-3/alarmclock/index.html
+++ b/Sprint-3/alarmclock/index.html
@@ -4,7 +4,7 @@
- Title here
+ alarmclock