diff --git a/apps/chimer/ChangeLog b/apps/chimer/ChangeLog
index 01bd00a0a..51842b5cd 100644
--- a/apps/chimer/ChangeLog
+++ b/apps/chimer/ChangeLog
@@ -1,2 +1,3 @@
 0.01: Initial Creation
-0.02: Fixed some sleep bugs. Added a sleep mode toggle
\ No newline at end of file
+0.02: Fixed some sleep bugs. Added a sleep mode toggle
+0.03: Reduce busy-loop and code
diff --git a/apps/chimer/metadata.json b/apps/chimer/metadata.json
index d5bc04950..dfbabf405 100644
--- a/apps/chimer/metadata.json
+++ b/apps/chimer/metadata.json
@@ -1,8 +1,8 @@
 {
   "id": "chimer",
   "name": "Chimer",
-  "version": "0.02",
-  "description": "A fork of Hour Chime that adds extra features such as: \n - Buzz or beep on every 60, 30 or 15 minutes. \n - Reapeat Chime up to 3 times \n - Set hours to disable chime",
+  "version": "0.03",
+  "description": "A fork of Hour Chime that adds extra features such as: \n - Buzz or beep on every 60, 30 or 15 minutes. \n - Repeat Chime up to 3 times \n - Set hours to disable chime",
   "icon": "widget.png",
   "type": "widget",
   "tags": "widget",
diff --git a/apps/chimer/widget.js b/apps/chimer/widget.js
index 18358df9e..a587b61de 100644
--- a/apps/chimer/widget.js
+++ b/apps/chimer/widget.js
@@ -16,16 +16,10 @@
 
   var settings = readSettings();
 
-  function sleep(milliseconds) {
-    const date = Date.now();
-    let currentDate = null;
-    do {
-      currentDate = Date.now();
-    } while (currentDate - date < milliseconds);
-  }
-
   function chime() {
-    for (var i = 0; i < settings.repeat; i++) {
+    let count = settings.repeat;
+
+    const chime1 = () => {
       if (settings.type === 1) {
         Bangle.buzz(100);
       } else if (settings.type === 2) {
@@ -33,8 +27,24 @@
       } else {
         return;
       }
-      sleep(150);
-    }
+      if (--count > 0)
+        setTimeout(chime1, 150);
+    };
+
+    chime1();
+  }
+
+  function queueNextCheckMins(mins) {
+    const now = new Date(),
+      m = now.getMinutes(),
+      s = now.getSeconds(),
+      ms = now.getMilliseconds();
+
+    const mLeft = mins - (m + mins * 2) % mins,
+      sLeft = mLeft * 60 - s,
+      msLeft = sLeft * 1000 - ms;
+
+    setTimeout(check, msLeft);
   }
 
   let lastHour = new Date().getHours();
@@ -45,88 +55,41 @@
       m = now.getMinutes(),
       s = now.getSeconds(),
       ms = now.getMilliseconds();
-    if (
-      (settings.sleep && h > settings.end) ||
-      (settings.sleep && h >= settings.end && m !== 0) ||
-      (settings.sleep && h < settings.start)
+    if (settings.sleep && (
+        h > settings.end ||
+        (h >= settings.end && m !== 0) ||
+        h < settings.start)
     ) {
-      var mLeft = 60 - m,
-        sLeft = mLeft * 60 - s,
-        msLeft = sLeft * 1000 - ms;
-      setTimeout(check, msLeft);
+      queueNextCheckMins(60);
       return;
     }
-    if (settings.freq === 1) {
-      if ((m !== lastMinute && m === 0) || (m !== lastMinute && m === 30))
-        chime();
-      lastHour = h;
-      lastMinute = m;
-      // check again in 30 minutes
-      switch (true) {
-        case m / 30 >= 1:
-          var mLeft = 30 - (m - 30),
-            sLeft = mLeft * 60 - s,
-            msLeft = sLeft * 1000 - ms;
-          break;
-        case m / 30 < 1:
-          var mLeft = 30 - m,
-            sLeft = mLeft * 60 - s,
-            msLeft = sLeft * 1000 - ms;
-          break;
-      }
-      setTimeout(check, msLeft);
-    } else if (settings.freq === 2) {
-      if (
-        (m !== lastMinute && m === 0) ||
-        (m !== lastMinute && m === 15) ||
-        (m !== lastMinute && m === 30) ||
-        (m !== lastMinute && m === 45)
-      )
-        chime();
-      lastHour = h;
-      lastMinute = m;
-      // check again in 15 minutes
-      switch (true) {
-        case m / 15 >= 3:
-          var mLeft = 15 - (m - 45),
-            sLeft = mLeft * 60 - s,
-            msLeft = sLeft * 1000 - ms;
-          break;
-        case m / 15 >= 2:
-          var mLeft = 15 - (m - 30),
-            sLeft = mLeft * 60 - s,
-            msLeft = sLeft * 1000 - ms;
-          break;
-        case m / 15 >= 1:
-          var mLeft = 15 - (m - 15),
-            sLeft = mLeft * 60 - s,
-            msLeft = sLeft * 1000 - ms;
-          break;
-        case m / 15 < 1:
-          var mLeft = 15 - m,
-            sLeft = mLeft * 60 - s,
-            msLeft = sLeft * 1000 - ms;
-          break;
-      }
-      setTimeout(check, msLeft);
-    } else if (settings.freq === 3) {
-      if (m !== lastMinute) chime();
-      lastHour = h;
-      lastMinute = m;
-      // check again in 1 minute
-
-      var mLeft = 1,
-        sLeft = mLeft * 60 - s,
-        msLeft = sLeft * 1000 - ms;
-      setTimeout(check, msLeft);
-    } else {
-      if (h !== lastHour && m === 0) chime();
-      lastHour = h;
-      // check again in 60 minutes
-      var mLeft = 60 - m,
-        sLeft = mLeft * 60 - s,
-        msLeft = sLeft * 1000 - ms;
-      setTimeout(check, msLeft);
+    switch (settings.freq) {
+      case 1:
+        if (m !== lastMinute && m % 30 === 0)
+          chime();
+        lastHour = h;
+        lastMinute = m;
+        queueNextCheckMins(30);
+        break;
+      case 2:
+        if (m !== lastMinute && m % 15 === 0)
+          chime();
+        lastHour = h;
+        lastMinute = m;
+        queueNextCheckMins(15);
+        break;
+      case 3:
+        // unreachable - not available in settings
+        if (m !== lastMinute) chime();
+        lastHour = h;
+        lastMinute = m;
+        queueNextCheckMins(1);
+        break;
+      default:
+        if (h !== lastHour && m === 0) chime();
+        lastHour = h;
+        queueNextCheckMins(60);
+        break;
     }
   }