diff --git a/apps.json b/apps.json
index 0271c244d..293a709c7 100644
--- a/apps.json
+++ b/apps.json
@@ -914,7 +914,7 @@
   { "id": "marioclock",
     "name": "Mario Clock",
     "icon": "marioclock.png",
-    "version":"0.09",
+    "version":"0.10",
     "description": "Animated retro Mario clock, with Gameboy style 8-bit grey-scale graphics.",
     "tags": "clock,mario,retro",
     "type": "clock",
diff --git a/apps/marioclock/ChangeLog b/apps/marioclock/ChangeLog
index acce6a7ed..b4a4c7af9 100644
--- a/apps/marioclock/ChangeLog
+++ b/apps/marioclock/ChangeLog
@@ -6,4 +6,5 @@
 0.06: Performance refactor, and enhanced graphics!
 0.07: Swipe right to change between Mario and Toad characters, swipe left to toggle night mode
 0.08: Update date panel to be info panel toggling between Date, Battery and Temperature. Add Princes Daisy
-0.09: Add GadgetBridge functionality. Mario shows message type in speach bubble, while message scrolls in info panel
\ No newline at end of file
+0.09: Add GadgetBridge functionality. Mario shows message type in speach bubble, while message scrolls in info panel
+0.10: Swiping left to enable night-mode now also reduces LCD brightness through 3 levels before returning to day-mode.
\ No newline at end of file
diff --git a/apps/marioclock/README.md b/apps/marioclock/README.md
index e6aeaa1bb..25276a351 100644
--- a/apps/marioclock/README.md
+++ b/apps/marioclock/README.md
@@ -8,7 +8,7 @@ Enjoy watching Mario, or one of the other game characters run through a level wh
 ## Features
 
 * Multiple characters - swipe the screen right to change the character between `Mario`, `Toad`, and `Daisy`
-* Night and Day modes - swipe left to toggle mode
+* Night and Day modes - swipe left to enter night mode, with 3 levels of darkness before returning to day mode.
 * Smooth animation
 * Awesome 8-bit style grey-scale graphics
 * Mario jumps to change the time, every minute
diff --git a/apps/marioclock/marioclock-app.js b/apps/marioclock/marioclock-app.js
index 529f1c95b..e213c2498 100644
--- a/apps/marioclock/marioclock-app.js
+++ b/apps/marioclock/marioclock-app.js
@@ -16,6 +16,8 @@ const is12Hour = settings["12hour"] || false;
 
 // Screen dimensions
 let W, H;
+// Screen brightness
+let brightness = 1;
 
 let intervalRef, displayTimeoutRef = null;
 
@@ -164,7 +166,17 @@ function switchCharacter() {
 }
 
 function toggleNightMode() {
-  nightMode = !nightMode;
+  if (!nightMode) {
+    nightMode = true;
+    return;
+  }
+
+  brightness -= 0.30;
+  if (brightness <= 0) {
+    brightness = 1;
+    nightMode = false;
+  }
+  Bangle.setLCDBrightness(brightness);
 }
 
 function incrementTimer() {
@@ -625,4 +637,4 @@ function init() {
 }
 
 // Initialise!
-init()
\ No newline at end of file
+init();
\ No newline at end of file