Add "Mitternacht" when it's spooky time.

src/matrix/render_functions.cpp

@@ -165,24 +165,27 @@ String time_to_string(uint8_t hours, uint8_t minutes)
     }
 
     // convert hours to 12h format
-    if (hours >= 12)
-    {
-        hours -= 12;
-    }
     if (minutes >= 20)
     {
         hours++;
     }
-    if (hours == 12)
+    if (hours > 12)  // 24h -> 12h, except 12h
     {
-        hours = 0;
+        hours -= 12;
     }
 
     // show hours
     switch (hours)
     {
     case 0:
-        message += "ZWOLF ";
+        if (minutes >= 0 && minutes < 5)
+        {
+            message += "MITTERNACHT ";
+        }
+        else
+        {
+            message += "ZWOLF ";
+        }
         break;
     case 1:
         message += "EIN";
@@ -223,6 +226,9 @@ String time_to_string(uint8_t hours, uint8_t minutes)
     case 11:
         message += "ELF ";
         break;
+    case 12:
+        message += "ZWOLF ";
+        break;
     }
     if (minutes < 5)
     {