diff --git a/Sprint-3/alarmclock/alarmclock.js b/Sprint-3/alarmclock/alarmclock.js
index 6ca81cd3b..5a6ba6882 100644
--- a/Sprint-3/alarmclock/alarmclock.js
+++ b/Sprint-3/alarmclock/alarmclock.js
@@ -1,4 +1,24 @@
-function setAlarm() {}
+function setAlarm() {
+ let seconds = parseInt(document.getElementById("alarmSet").value, 10);
+ const heading = document.getElementById("timeRemaining");
+
+ function formatTime(s) {
+ const mins = String(Math.floor(s / 60)).padStart(2, "0");
+ const secs = String(s % 60).padStart(2, "0");
+ return `Time Remaining: ${mins}:${secs}`;
+ }
+
+ heading.innerText = formatTime(seconds);
+
+ const timer = setInterval(() => {
+ seconds--;
+ heading.innerText = formatTime(seconds);
+ if (seconds <= 0) {
+ clearInterval(timer);
+ playAlarm();
+ }
+ }, 1000);
+}
// DO NOT EDIT BELOW HERE
diff --git a/Sprint-3/alarmclock/index.html b/Sprint-3/alarmclock/index.html
index 48e2e80d9..ff2d3b453 100644
--- a/Sprint-3/alarmclock/index.html
+++ b/Sprint-3/alarmclock/index.html
@@ -4,7 +4,7 @@
- Title here
+ Alarm clock app