diff --git a/desmume/src/GPU_osd.cpp b/desmume/src/GPU_osd.cpp
index 7853b428d..cd876a425 100644
--- a/desmume/src/GPU_osd.cpp
+++ b/desmume/src/GPU_osd.cpp
@@ -562,9 +562,8 @@ void DrawHUD()
 
 	if (CommonSettings.hud.ShowRTC) 
 	{
-		DateTime tm = rtcGetTime();
-		static const char *wday[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
-		osd->addFixed(Hud.RTCDisplay.x, Hud.RTCDisplay.y, "%04d-%03s-%02d %s %02d:%02d:%02d", tm.get_Year(), DateTime::GetNameOfMonth(tm.get_Month()), tm.get_Day(), wday[tm.get_DayOfWeek()%7], tm.get_Hour(), tm.get_Minute(), tm.get_Second());
+		rtcGetTimeAsString(Hud.rtcString);
+		osd->addFixed(Hud.RTCDisplay.x, Hud.RTCDisplay.y, Hud.rtcString);
 	}
 
 	DrawStateSlots();
diff --git a/desmume/src/GPU_osd.h b/desmume/src/GPU_osd.h
index 6a63dfa40..1ada7c20a 100644
--- a/desmume/src/GPU_osd.h
+++ b/desmume/src/GPU_osd.h
@@ -55,6 +55,7 @@ public:
 		fps3d = 0;
 		cpuload[0] = cpuload[1] = 0;
 		cpuloopIterationCount = 0;
+		memset(rtcString, 0, sizeof(rtcString));
 		clicked = false;
 	}
 
@@ -72,6 +73,7 @@ public:
 	void reset();
 
 	int fps, fps3d, cpuload[2], cpuloopIterationCount;
+	char rtcString[25];
 	bool clicked;
 };
 
diff --git a/desmume/src/cocoa/OGLDisplayOutput.cpp b/desmume/src/cocoa/OGLDisplayOutput.cpp
index 37146702d..d6c5fca04 100644
--- a/desmume/src/cocoa/OGLDisplayOutput.cpp
+++ b/desmume/src/cocoa/OGLDisplayOutput.cpp
@@ -5708,11 +5708,13 @@ OGLHUDLayer::OGLHUDLayer(OGLVideoOutput *oglVO)
 	_showRender3DFPS = false;
 	_showFrameIndex = false;
 	_showLagFrameCount = false;
+	_showRTC = false;
 	
 	_lastVideoFPS = 0;
 	_lastRender3DFPS = 0;
 	_lastFrameIndex = 0;
 	_lastLagFrameCount = 0;
+	memset(_lastRTCString, 0, sizeof(_lastRTCString));
 	_textBoxLines = 0;
 	_textBoxWidth = 0;
 	
@@ -5921,12 +5923,13 @@ void OGLHUDLayer::SetFontUsingPath(const char *filePath)
 	glBindTexture(GL_TEXTURE_2D, 0);
 }
 
-void OGLHUDLayer::SetInfo(const uint32_t videoFPS, const uint32_t render3DFPS, const uint32_t frameIndex, const uint32_t lagFrameCount)
+void OGLHUDLayer::SetInfo(const uint32_t videoFPS, const uint32_t render3DFPS, const uint32_t frameIndex, const uint32_t lagFrameCount, const char *rtcString)
 {
 	this->_lastVideoFPS = videoFPS;
 	this->_lastRender3DFPS = render3DFPS;
 	this->_lastFrameIndex = frameIndex;
 	this->_lastLagFrameCount = lagFrameCount;
+	memcpy(this->_lastRTCString, rtcString, sizeof(this->_lastRTCString));
 	
 	this->RefreshInfo();
 }
@@ -5978,6 +5981,17 @@ void OGLHUDLayer::RefreshInfo()
 		}
 	}
 	
+	if (this->_showRTC)
+	{
+		ss << "RTC: " << this->_lastRTCString << "\n";
+		
+		const GLint newTextBoxWidth = (charSize * 10.3f) + 6.5f;
+		if (newTextBoxWidth > this->_textBoxWidth)
+		{
+			this->_textBoxWidth = newTextBoxWidth;
+		}
+	}
+	
 	this->_statusString = ss.str();
 }
 
@@ -6042,6 +6056,16 @@ bool OGLHUDLayer::GetShowLagFrameCount() const
 	return this->_showLagFrameCount;
 }
 
+void OGLHUDLayer::SetShowRTC(const bool visibleState)
+{
+	this->_SetShowInfoItemOGL(this->_showRTC, visibleState);
+}
+
+bool OGLHUDLayer::GetShowRTC() const
+{
+	return this->_showRTC;
+}
+
 void OGLHUDLayer::_ProcessVerticesOGL()
 {
 	if (this->_textBoxLines <= 0)
diff --git a/desmume/src/cocoa/OGLDisplayOutput.h b/desmume/src/cocoa/OGLDisplayOutput.h
index a3c3a7da6..973d129b5 100644
--- a/desmume/src/cocoa/OGLDisplayOutput.h
+++ b/desmume/src/cocoa/OGLDisplayOutput.h
@@ -318,11 +318,13 @@ protected:
 	bool _showRender3DFPS;
 	bool _showFrameIndex;
 	bool _showLagFrameCount;
+	bool _showRTC;
 	
 	uint32_t _lastVideoFPS;
 	uint32_t _lastRender3DFPS;
 	uint32_t _lastFrameIndex;
 	uint32_t _lastLagFrameCount;
+	char _lastRTCString[25];
 	
 	GLint _textBoxLines;
 	GLint _textBoxWidth;
@@ -336,7 +338,7 @@ public:
 	
 	void SetFontUsingPath(const char *filePath);
 	
-	void SetInfo(const uint32_t videoFPS, const uint32_t render3DFPS, const uint32_t frameIndex, const uint32_t lagFrameCount);
+	void SetInfo(const uint32_t videoFPS, const uint32_t render3DFPS, const uint32_t frameIndex, const uint32_t lagFrameCount, const char *rtcString);
 	void RefreshInfo();
 	
 	void SetShowVideoFPS(const bool visibleState);
@@ -347,6 +349,8 @@ public:
 	bool GetShowFrameIndex() const;
 	void SetShowLagFrameCount(const bool visibleState);
 	bool GetShowLagFrameCount() const;
+	void SetShowRTC(const bool visibleState);
+	bool GetShowRTC() const;
 	
 	virtual void SetViewportSizeOGL(GLsizei w, GLsizei h);
 	virtual void ProcessOGL();
diff --git a/desmume/src/cocoa/cocoa_core.h b/desmume/src/cocoa/cocoa_core.h
index 7e16e4ef6..b39e0b5bd 100644
--- a/desmume/src/cocoa/cocoa_core.h
+++ b/desmume/src/cocoa/cocoa_core.h
@@ -52,6 +52,7 @@ struct NDSFrameInfo
 	uint32_t render3DFPS;
 	uint32_t frameIndex;
 	uint32_t lagFrameCount;
+	char rtcString[25];
 };
 
 typedef struct NDSFrameInfo NDSFrameInfo;
diff --git a/desmume/src/cocoa/cocoa_output.mm b/desmume/src/cocoa/cocoa_output.mm
index 718ff7dfd..a321cbbb1 100644
--- a/desmume/src/cocoa/cocoa_output.mm
+++ b/desmume/src/cocoa/cocoa_output.mm
@@ -29,6 +29,7 @@
 #include "../SPU.h"
 #include "../movie.h"
 #include "../metaspu/metaspu.h"
+#include "../rtc.h"
 
 #import <Cocoa/Cocoa.h>
 
@@ -832,6 +833,7 @@
 	frameInfo.render3DFPS = Render3DFramesPerSecond;
 	frameInfo.frameIndex = currFrameCounter;
 	frameInfo.lagFrameCount = TotalLagFrames;
+	rtcGetTimeAsString(frameInfo.rtcString);
 	
 	[(id<CocoaDSDisplayVideoDelegate>)delegate doProcessVideoFrameWithInfo:frameInfo];
 }
diff --git a/desmume/src/cocoa/translations/English.lproj/MainMenu.xib b/desmume/src/cocoa/translations/English.lproj/MainMenu.xib
index 677130e81..e149463dd 100644
--- a/desmume/src/cocoa/translations/English.lproj/MainMenu.xib
+++ b/desmume/src/cocoa/translations/English.lproj/MainMenu.xib
@@ -13,7 +13,7 @@
     <object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
       <bool key="EncodedWithXMLCoder">YES</bool>
       <integer value="795"/>
-      <integer value="29"/>
+      <integer value="10142"/>
     </object>
     <object class="NSArray" key="IBDocument.PluginDependencies">
       <bool key="EncodedWithXMLCoder">YES</bool>
@@ -1671,7 +1671,6 @@
                       </object>
                       <object class="NSMenuItem" id="713295923">
                         <reference key="NSMenu" ref="240738211"/>
-                        <bool key="NSIsDisabled">YES</bool>
                         <string key="NSTitle">Real-Time Clock</string>
                         <string key="NSKeyEquiv"/>
                         <int key="NSMnemonicLoc">2147483647</int>
@@ -5842,7 +5841,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
                       <string key="NSReuseIdentifierKey">_NS:682</string>
                       <bool key="NSEnabled">YES</bool>
                       <object class="NSButtonCell" key="NSCell" id="485509450">
-                        <int key="NSCellFlags">-2080374784</int>
+                        <int key="NSCellFlags">67108864</int>
                         <int key="NSCellFlags2">0</int>
                         <string key="NSContents">Enable Heads-Up Display</string>
                         <reference key="NSSupport" ref="462791774"/>
@@ -5892,7 +5891,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
                       <string key="NSReuseIdentifierKey">_NS:682</string>
                       <bool key="NSEnabled">YES</bool>
                       <object class="NSButtonCell" key="NSCell" id="448115349">
-                        <int key="NSCellFlags">-2080374784</int>
+                        <int key="NSCellFlags">67108864</int>
                         <int key="NSCellFlags2">0</int>
                         <string key="NSContents">Show 3D Renderer FPS</string>
                         <reference key="NSSupport" ref="462791774"/>
@@ -5917,7 +5916,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
                       <string key="NSReuseIdentifierKey">_NS:682</string>
                       <bool key="NSEnabled">YES</bool>
                       <object class="NSButtonCell" key="NSCell" id="151263599">
-                        <int key="NSCellFlags">-2080374784</int>
+                        <int key="NSCellFlags">67108864</int>
                         <int key="NSCellFlags2">0</int>
                         <string key="NSContents">Show Frame Index</string>
                         <reference key="NSSupport" ref="462791774"/>
@@ -5942,7 +5941,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
                       <string key="NSReuseIdentifierKey">_NS:682</string>
                       <bool key="NSEnabled">YES</bool>
                       <object class="NSButtonCell" key="NSCell" id="577627485">
-                        <int key="NSCellFlags">-2080374784</int>
+                        <int key="NSCellFlags">67108864</int>
                         <int key="NSCellFlags2">0</int>
                         <string key="NSContents">Show Lag Counter</string>
                         <reference key="NSSupport" ref="462791774"/>
@@ -5992,7 +5991,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
                       <string key="NSReuseIdentifierKey">_NS:682</string>
                       <bool key="NSEnabled">YES</bool>
                       <object class="NSButtonCell" key="NSCell" id="922088406">
-                        <int key="NSCellFlags">603979776</int>
+                        <int key="NSCellFlags">67108864</int>
                         <int key="NSCellFlags2">0</int>
                         <string key="NSContents">Show Real Time Clock</string>
                         <reference key="NSSupport" ref="462791774"/>
@@ -21054,7 +21053,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
               <reference key="NSSuperview" ref="1004755540"/>
               <bool key="NSEnabled">YES</bool>
               <object class="NSButtonCell" key="NSCell" id="975096499">
-                <int key="NSCellFlags">603979776</int>
+                <int key="NSCellFlags">67108864</int>
                 <int key="NSCellFlags2">131072</int>
                 <string key="NSContents">Real Time Clock</string>
                 <reference key="NSSupport" ref="26"/>
@@ -29814,6 +29813,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
           <string>mainWindow.view.isHUDRender3DFPSVisible</string>
           <string>mainWindow.view.isHUDFrameIndexVisible</string>
           <string>mainWindow.view.isHUDLagFrameCountVisible</string>
+          <string>mainWindow.view.isHUDRealTimeClockVisible</string>
         </object>
         <string key="NSObjectClassName">EmuControllerDelegate</string>
         <object class="_NSManagedProxy" key="_NSManagedProxy"/>
@@ -30083,6 +30083,10 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
         <bool key="NSClearsFilterPredicateOnInsertion">YES</bool>
       </object>
       <object class="NSUserDefaultsController" id="178548672">
+        <object class="NSMutableArray" key="NSDeclaredKeys">
+          <bool key="EncodedWithXMLCoder">YES</bool>
+          <string>HUD_ShowRTC</string>
+        </object>
         <bool key="NSSharedInstance">YES</bool>
       </object>
     </object>
@@ -42648,6 +42652,46 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
           </object>
           <int key="connectionID">10186</int>
         </object>
+        <object class="IBConnectionRecord">
+          <object class="IBBindingConnection" key="connection">
+            <string key="label">value: selection.mainWindow.view.isHUDRealTimeClockVisible</string>
+            <reference key="source" ref="523387766"/>
+            <reference key="destination" ref="258098641"/>
+            <object class="NSNibBindingConnector" key="connector">
+              <reference key="NSSource" ref="523387766"/>
+              <reference key="NSDestination" ref="258098641"/>
+              <string key="NSLabel">value: selection.mainWindow.view.isHUDRealTimeClockVisible</string>
+              <string key="NSBinding">value</string>
+              <string key="NSKeyPath">selection.mainWindow.view.isHUDRealTimeClockVisible</string>
+              <int key="NSNibBindingConnectorVersion">2</int>
+            </object>
+          </object>
+          <int key="connectionID">10187</int>
+        </object>
+        <object class="IBConnectionRecord">
+          <object class="IBBindingConnection" key="connection">
+            <string key="label">value: values.HUD_ShowRTC</string>
+            <reference key="source" ref="821096320"/>
+            <reference key="destination" ref="178548672"/>
+            <object class="NSNibBindingConnector" key="connector">
+              <reference key="NSSource" ref="821096320"/>
+              <reference key="NSDestination" ref="178548672"/>
+              <string key="NSLabel">value: values.HUD_ShowRTC</string>
+              <string key="NSBinding">value</string>
+              <string key="NSKeyPath">values.HUD_ShowRTC</string>
+              <int key="NSNibBindingConnectorVersion">2</int>
+            </object>
+          </object>
+          <int key="connectionID">10188</int>
+        </object>
+        <object class="IBConnectionRecord">
+          <object class="IBActionConnection" key="connection">
+            <string key="label">toggleShowHUDRealTimeClock:</string>
+            <reference key="source" ref="1014"/>
+            <reference key="destination" ref="713295923"/>
+          </object>
+          <int key="connectionID">10189</int>
+        </object>
       </object>
       <object class="IBMutableOrderedSet" key="objectRecords">
         <object class="NSArray" key="orderedObjects">
@@ -43180,14 +43224,14 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
             <object class="NSMutableArray" key="children">
               <bool key="EncodedWithXMLCoder">YES</bool>
               <reference ref="304092617"/>
-              <reference ref="523387766"/>
               <reference ref="269230248"/>
               <reference ref="189973188"/>
-              <reference ref="708958649"/>
               <reference ref="272928836"/>
               <reference ref="278136792"/>
               <reference ref="302843702"/>
               <reference ref="448396937"/>
+              <reference ref="708958649"/>
+              <reference ref="523387766"/>
             </object>
             <reference key="parent" ref="485576541"/>
           </object>
@@ -57617,9 +57661,9 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
               <reference ref="987081603"/>
               <reference ref="162261505"/>
               <reference ref="250008560"/>
-              <reference ref="821096320"/>
-              <reference ref="115372504"/>
               <reference ref="770825807"/>
+              <reference ref="115372504"/>
+              <reference ref="821096320"/>
             </object>
             <reference key="parent" ref="460623416"/>
           </object>
@@ -62905,7 +62949,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
           <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
           <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
           <object class="NSAffineTransform">
-            <bytes key="NSTransformStruct">P4AAAL+AAABBkAAAwsYAAA</bytes>
+            <bytes key="NSTransformStruct">P4AAAL+AAABBgAAAwsYAAA</bytes>
           </object>
           <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
           <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
@@ -62944,7 +62988,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
           <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
           <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
           <object class="NSAffineTransform">
-            <bytes key="NSTransformStruct">P4AAAL+AAABBkAAAwmwAAA</bytes>
+            <bytes key="NSTransformStruct">P4AAAL+AAABBgAAAwmwAAA</bytes>
           </object>
           <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
           <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
@@ -63708,7 +63752,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
         </object>
       </object>
       <nil key="sourceID"/>
-      <int key="maxID">10186</int>
+      <int key="maxID">10189</int>
     </object>
     <object class="IBClassDescriber" key="IBDocument.Classes">
       <object class="NSMutableArray" key="referencedPartialClassDescriptions">
@@ -67079,7 +67123,7 @@ y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp2
       <integer value="3100" key="NS.object.0"/>
     </object>
     <bool key="IBDocument.PluginDeclaredDependenciesTrackSystemTargetVersion">YES</bool>
-    <nil key="IBDocument.LastKnownRelativeProjectPath"/>
+    <string key="IBDocument.LastKnownRelativeProjectPath">../../DeSmuME (XCode 3).xcodeproj</string>
     <int key="IBDocument.defaultPropertyAccessControl">3</int>
     <object class="NSMutableDictionary" key="IBDocument.LastKnownImageSizes">
       <bool key="EncodedWithXMLCoder">YES</bool>
diff --git a/desmume/src/cocoa/userinterface/DisplayWindowController.h b/desmume/src/cocoa/userinterface/DisplayWindowController.h
index 54f5c3940..6fce7a689 100644
--- a/desmume/src/cocoa/userinterface/DisplayWindowController.h
+++ b/desmume/src/cocoa/userinterface/DisplayWindowController.h
@@ -60,6 +60,7 @@ class OGLVideoOutput;
 @property (assign) BOOL isHUDRender3DFPSVisible;
 @property (assign) BOOL isHUDFrameIndexVisible;
 @property (assign) BOOL isHUDLagFrameCountVisible;
+@property (assign) BOOL isHUDRealTimeClockVisible;
 @property (assign) BOOL useVerticalSync;
 @property (assign) BOOL videoFiltersPreferGPU;
 @property (assign) BOOL sourceDeposterize;
diff --git a/desmume/src/cocoa/userinterface/DisplayWindowController.mm b/desmume/src/cocoa/userinterface/DisplayWindowController.mm
index a45b7a7b8..96a8dc613 100644
--- a/desmume/src/cocoa/userinterface/DisplayWindowController.mm
+++ b/desmume/src/cocoa/userinterface/DisplayWindowController.mm
@@ -494,9 +494,9 @@ static std::unordered_map<NSScreen *, DisplayWindowController *> _screenMap; //
 	[[self view] setIsHUDRender3DFPSVisible:[[NSUserDefaults standardUserDefaults] boolForKey:@"HUD_ShowRender3DFPS"]];
 	[[self view] setIsHUDFrameIndexVisible:[[NSUserDefaults standardUserDefaults] boolForKey:@"HUD_ShowFrameIndex"]];
 	[[self view] setIsHUDLagFrameCountVisible:[[NSUserDefaults standardUserDefaults] boolForKey:@"HUD_ShowLagFrameCount"]];
-	// TODO: Show HUD Input and RTC.
+	[[self view] setIsHUDRealTimeClockVisible:[[NSUserDefaults standardUserDefaults] boolForKey:@"HUD_ShowRTC"]];
+	// TODO: Show HUD Input.
 	//[[self view] setIsHUDInputVisible:[[NSUserDefaults standardUserDefaults] boolForKey:@"HUD_ShowInput"]];
-	//[[self view] setIsHUDRealTimeClockVisible:[[NSUserDefaults standardUserDefaults] boolForKey:@"HUD_ShowRTC"]];
 }
 
 - (NSSize) normalSize
@@ -742,7 +742,7 @@ static std::unordered_map<NSScreen *, DisplayWindowController *> _screenMap; //
 
 - (IBAction) toggleShowHUDRealTimeClock:(id)sender
 {
-	//[[self view] setIsHUDRealTimeClockVisible:![[self view] isHUDRealTimeClockVisible]];
+	[[self view] setIsHUDRealTimeClockVisible:![[self view] isHUDRealTimeClockVisible]];
 }
 
 - (IBAction) toggleKeepMinDisplaySizeAtNormal:(id)sender
@@ -935,9 +935,9 @@ static std::unordered_map<NSScreen *, DisplayWindowController *> _screenMap; //
 	[[NSUserDefaults standardUserDefaults] setBool:[[self view] isHUDRender3DFPSVisible] forKey:@"HUD_ShowRender3DFPS"];
 	[[NSUserDefaults standardUserDefaults] setBool:[[self view] isHUDFrameIndexVisible] forKey:@"HUD_ShowFrameIndex"];
 	[[NSUserDefaults standardUserDefaults] setBool:[[self view] isHUDLagFrameCountVisible] forKey:@"HUD_ShowLagFrameCount"];
-	// TODO: Show HUD Input and RTC.
+	[[NSUserDefaults standardUserDefaults] setBool:[[self view] isHUDRealTimeClockVisible] forKey:@"HUD_ShowRTC"];
+	// TODO: Show HUD Input.
 	//[[NSUserDefaults standardUserDefaults] setBool:[[self view] isHUDInputVisible] forKey:@"HUD_ShowInput"];
-	//[[NSUserDefaults standardUserDefaults] setBool:[[self view] isHUDRealTimeClockVisible] forKey:@"HUD_ShowRTC"];
 }
 
 - (IBAction) writeDefaultsDisplayVideoSettings:(id)sender
@@ -1122,6 +1122,13 @@ static std::unordered_map<NSScreen *, DisplayWindowController *> _screenMap; //
 			[(NSMenuItem *)theItem setState:([[self view] isHUDLagFrameCountVisible]) ? NSOnState : NSOffState];
 		}
 	}
+	else if (theAction == @selector(toggleShowHUDRealTimeClock:))
+	{
+		if ([(id)theItem isMemberOfClass:[NSMenuItem class]])
+		{
+			[(NSMenuItem *)theItem setState:([[self view] isHUDRealTimeClockVisible]) ? NSOnState : NSOffState];
+		}
+	}
 	else if (theAction == @selector(toggleStatusBar:))
 	{
 		if ([(id)theItem isMemberOfClass:[NSMenuItem class]])
@@ -1371,6 +1378,7 @@ static std::unordered_map<NSScreen *, DisplayWindowController *> _screenMap; //
 @dynamic isHUDRender3DFPSVisible;
 @dynamic isHUDFrameIndexVisible;
 @dynamic isHUDLagFrameCountVisible;
+@dynamic isHUDRealTimeClockVisible;
 @dynamic useVerticalSync;
 @dynamic videoFiltersPreferGPU;
 @dynamic sourceDeposterize;
@@ -1585,6 +1593,28 @@ static std::unordered_map<NSScreen *, DisplayWindowController *> _screenMap; //
 	return theState;
 }
 
+- (void) setIsHUDRealTimeClockVisible:(BOOL)theState
+{
+	OSSpinLockLock(&spinlockIsHUDVisible);
+	
+	CGLLockContext(cglDisplayContext);
+	CGLSetCurrentContext(cglDisplayContext);
+	oglv->GetHUDLayer()->SetShowRTC((theState) ? true : false);
+	[self drawVideoFrame];
+	CGLUnlockContext(cglDisplayContext);
+	
+	OSSpinLockUnlock(&spinlockIsHUDVisible);
+}
+
+- (BOOL) isHUDRealTimeClockVisible
+{
+	OSSpinLockLock(&spinlockIsHUDVisible);
+	const BOOL theState = (oglv->GetHUDLayer()->GetShowRTC()) ? YES : NO;
+	OSSpinLockUnlock(&spinlockIsHUDVisible);
+	
+	return theState;
+}
+
 - (void) setUseVerticalSync:(BOOL)theState
 {
 	OSSpinLockLock(&spinlockUseVerticalSync);
@@ -2045,7 +2075,8 @@ static std::unordered_map<NSScreen *, DisplayWindowController *> _screenMap; //
 		hudLayer->SetInfo(frameInfo.videoFPS,
 						  frameInfo.render3DFPS,
 						  frameInfo.frameIndex,
-						  frameInfo.lagFrameCount);
+						  frameInfo.lagFrameCount,
+						  frameInfo.rtcString);
 		hudLayer->ProcessOGL();
 	}
 	
diff --git a/desmume/src/cocoa/userinterface/appDelegate.mm b/desmume/src/cocoa/userinterface/appDelegate.mm
index 116f007ee..3dca10d2d 100644
--- a/desmume/src/cocoa/userinterface/appDelegate.mm
+++ b/desmume/src/cocoa/userinterface/appDelegate.mm
@@ -632,9 +632,9 @@
 			const BOOL hudShowRender3DFPS			= [(NSNumber *)[windowProperties valueForKey:@"hudShowRender3DFPS"] boolValue];
 			const BOOL hudShowFrameIndex			= [(NSNumber *)[windowProperties valueForKey:@"hudShowFrameIndex"] boolValue];
 			const BOOL hudShowLagFrameCount			= [(NSNumber *)[windowProperties valueForKey:@"hudShowLagFrameCount"] boolValue];
-			// TODO: Show HUD Input and RTC.
+			const BOOL hudShowRTC					= [(NSNumber *)[windowProperties valueForKey:@"hudShowRTC"] boolValue];
+			// TODO: Show HUD Input.
 			//const BOOL hudShowInput					= [(NSNumber *)[windowProperties valueForKey:@"hudShowInput"] boolValue];
-			//const BOOL hudShowRTC					= [(NSNumber *)[windowProperties valueForKey:@"hudShowRTC"] boolValue];
 			
 			const NSInteger screenshotFileFormat	= [(NSNumber *)[windowProperties valueForKey:@"screenshotFileFormat"] integerValue];
 			const BOOL useVerticalSync				= [(NSNumber *)[windowProperties valueForKey:@"useVerticalSync"] boolValue];
@@ -670,6 +670,7 @@
 			[[windowController view] setIsHUDRender3DFPSVisible:hudShowRender3DFPS];
 			[[windowController view] setIsHUDFrameIndexVisible:hudShowFrameIndex];
 			[[windowController view] setIsHUDLagFrameCountVisible:hudShowLagFrameCount];
+			[[windowController view] setIsHUDRealTimeClockVisible:hudShowRTC];
 			
 			[[windowController masterWindow] setFrameOrigin:NSMakePoint(frameX, frameY)];
 			
@@ -741,6 +742,7 @@
 											  [NSNumber numberWithBool:[[windowController view] isHUDRender3DFPSVisible]], @"hudShowRender3DFPS",
 											  [NSNumber numberWithBool:[[windowController view] isHUDFrameIndexVisible]], @"hudShowFrameIndex",
 											  [NSNumber numberWithBool:[[windowController view] isHUDLagFrameCountVisible]], @"hudShowLagFrameCount",
+											  [NSNumber numberWithBool:[[windowController view] isHUDRealTimeClockVisible]], @"hudShowRTC",
 											  [NSNumber numberWithBool:[windowController isMinSizeNormal]], @"isMinSizeNormal",
 											  [NSNumber numberWithBool:[windowController isShowingStatusBar]], @"isShowingStatusBar",
 											  [NSNumber numberWithBool:isInFullScreenMode], @"isInFullScreenMode",
@@ -748,9 +750,8 @@
 											  windowFrameStr, @"windowFrame",
 											  nil];
 			
-			// TODO: Show HUD Input and RTC.
+			// TODO: Show HUD Input.
 			//[NSNumber numberWithBool:[[windowController view] isHUDInputVisible]], @"hudShowInput",
-			//[NSNumber numberWithBool:[[windowController view] isHUDRealTimeClockVisible]], @"hudShowRTC",
 			
 			[windowPropertiesList addObject:windowProperties];
 		}
diff --git a/desmume/src/rtc.cpp b/desmume/src/rtc.cpp
index 077d9b734..2f5eac80c 100644
--- a/desmume/src/rtc.cpp
+++ b/desmume/src/rtc.cpp
@@ -116,6 +116,21 @@ DateTime rtcGetTime(void)
 	}
 }
 
+void rtcGetTimeAsString(char *buffer)
+{
+	static const char *wday[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
+	
+	const DateTime rtcTime = rtcGetTime();
+	snprintf(buffer, 25, "%04d-%3s-%02d %s %02d:%02d:%02d",
+			 rtcTime.get_Year(),
+			 DateTime::GetNameOfMonth(rtcTime.get_Month()),
+			 rtcTime.get_Day(),
+			 wday[rtcTime.get_DayOfWeek()%7],
+			 rtcTime.get_Hour(),
+			 rtcTime.get_Minute(),
+			 rtcTime.get_Second());
+}
+
 static void rtcRecv()
 {
 	//INFO("RTC Read command 0x%02X\n", (rtc.cmd >> 1));
diff --git a/desmume/src/rtc.h b/desmume/src/rtc.h
index c2762f766..1872c6d96 100644
--- a/desmume/src/rtc.h
+++ b/desmume/src/rtc.h
@@ -25,6 +25,7 @@
 #include "utils/datetime.h"
 
 DateTime rtcGetTime(void);
+void rtcGetTimeAsString(char *buffer);
 
 extern	void rtcInit();
 extern	u16 rtcRead();