diff --git a/wled00/cfg.cpp b/wled00/cfg.cpp
index 4234d9b0..8d7458b9 100644
--- a/wled00/cfg.cpp
+++ b/wled00/cfg.cpp
@@ -496,6 +496,7 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
   CJSON(analogClock12pixel, ol[F("o12pix")]);
   CJSON(analogClock5MinuteMarks, ol[F("o5m")]);
   CJSON(analogClockSecondsTrail, ol[F("osec")]);
+  CJSON(analogClockSolidBlack, ol[F("osb")]);
 
   //timed macro rules
   JsonObject tm = doc[F("timers")];
@@ -954,6 +955,7 @@ void serializeConfig() {
   ol[F("o12pix")] = analogClock12pixel;
   ol[F("o5m")] = analogClock5MinuteMarks;
   ol[F("osec")] = analogClockSecondsTrail;
+  ol[F("osb")] = analogClockSolidBlack;
 
   JsonObject timers = doc.createNestedObject(F("timers"));
 
diff --git a/wled00/data/settings_time.htm b/wled00/data/settings_time.htm
index c14884a1..041177fd 100644
--- a/wled00/data/settings_time.htm
+++ b/wled00/data/settings_time.htm
@@ -210,6 +210,7 @@
 			12h LED: <input name="OM" type="number" min="0" max="255" required><br>
 			Show 5min marks: <input type="checkbox" name="O5"><br>
 			Seconds (as trail): <input type="checkbox" name="OS"><br>
+			Show clock overlay only if all LEDs are solid black: <input type="checkbox" name="OB"><br>
 		</div>
 		Countdown Mode: <input type="checkbox" name="CE"><br>
 		Countdown Goal:<br>
diff --git a/wled00/overlay.cpp b/wled00/overlay.cpp
index cfee7e81..d76399e6 100644
--- a/wled00/overlay.cpp
+++ b/wled00/overlay.cpp
@@ -89,6 +89,15 @@ void _overlayAnalogCountdown()
 
 void handleOverlayDraw() {
   usermods.handleOverlayDraw();
+  if (analogClockSolidBlack) {
+    Segment* segments = strip.getSegments();
+    for (uint8_t i = 0; i < strip.getActiveSegmentsNum(); i++) {
+      Segment segment = segments[i];
+      if (segment.mode > 0 || segment.colors[0] > 0) {
+        return;
+      }
+    }
+  }
   if (overlayCurrent == 1) _overlayAnalogClock();
 }
 
diff --git a/wled00/set.cpp b/wled00/set.cpp
index 744c0eee..d2aab39a 100644
--- a/wled00/set.cpp
+++ b/wled00/set.cpp
@@ -409,6 +409,7 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
     analogClock12pixel = request->arg(F("OM")).toInt();
     analogClock5MinuteMarks = request->hasArg(F("O5"));
     analogClockSecondsTrail = request->hasArg(F("OS"));
+    analogClockSolidBlack = request->hasArg(F("OB"));
 
     countdownMode = request->hasArg(F("CE"));
     countdownYear = request->arg(F("CY")).toInt();
diff --git a/wled00/wled.h b/wled00/wled.h
index ad051893..797eae50 100644
--- a/wled00/wled.h
+++ b/wled00/wled.h
@@ -482,6 +482,7 @@ WLED_GLOBAL byte overlayMin _INIT(0), overlayMax _INIT(DEFAULT_LED_COUNT - 1);
 WLED_GLOBAL byte analogClock12pixel _INIT(0);               // The pixel in your strip where "midnight" would be
 WLED_GLOBAL bool analogClockSecondsTrail _INIT(false);      // Display seconds as trail of LEDs instead of a single pixel
 WLED_GLOBAL bool analogClock5MinuteMarks _INIT(false);      // Light pixels at every 5-minute position
+WLED_GLOBAL bool analogClockSolidBlack _INIT(false);        // Show clock overlay only if all LEDs are solid black (effect is 0 and color is black)
 
 WLED_GLOBAL bool countdownMode _INIT(false);                         // Clock will count down towards date
 WLED_GLOBAL byte countdownYear _INIT(20), countdownMonth _INIT(1);   // Countdown target date, year is last two digits
diff --git a/wled00/xml.cpp b/wled00/xml.cpp
index 23de8179..aac1217a 100644
--- a/wled00/xml.cpp
+++ b/wled00/xml.cpp
@@ -597,6 +597,7 @@ void getSettingsJS(byte subPage, char* dest)
     sappend('v',SET_F("OM"),analogClock12pixel);
     sappend('c',SET_F("OS"),analogClockSecondsTrail);
     sappend('c',SET_F("O5"),analogClock5MinuteMarks);
+    sappend('c',SET_F("OB"),analogClockSolidBlack);
 
     sappend('c',SET_F("CE"),countdownMode);
     sappend('v',SET_F("CY"),countdownYear);