diff --git a/src/c_bind.cpp b/src/c_bind.cpp
index 83e5e1820c7..cbc65868f5f 100644
--- a/src/c_bind.cpp
+++ b/src/c_bind.cpp
@@ -744,8 +744,8 @@ bool C_DoKey (event_t *ev, FKeyBindings *binds, FKeyBindings *doublebinds)
 	dclick = false;
 
 	// This used level.time which didn't work outside a level.
-	nowtime = I_MSTime();
-	if (doublebinds != NULL && DClickTime[ev->data1] > nowtime && ev->type == EV_KeyDown)
+	nowtime = I_FPSTime();
+	if (doublebinds != NULL && int(DClickTime[ev->data1] - nowtime) > 0 && ev->type == EV_KeyDown)
 	{
 		// Key pressed for a double click
 		binding = doublebinds->GetBinding(ev->data1);
diff --git a/src/d_main.cpp b/src/d_main.cpp
index 5e0eff1d130..e58c2f68618 100644
--- a/src/d_main.cpp
+++ b/src/d_main.cpp
@@ -779,9 +779,9 @@ void D_Display ()
 
 
 	{
-		unsigned int nowtime = I_FPSTime();
-		TexMan.UpdateAnimations(nowtime);
-		R_UpdateSky(nowtime);
+		screen->FrameTime = I_FPSTime();
+		TexMan.UpdateAnimations(screen->FrameTime);
+		R_UpdateSky(screen->FrameTime);
 		switch (gamestate)
 		{
 		case GS_FULLCONSOLE:
@@ -808,7 +808,7 @@ void D_Display ()
 			// [ZZ] execute event hook that we just started the frame
 			//E_RenderFrame();
 			//
-			Renderer->RenderView(&players[consoleplayer], nowtime);
+			Renderer->RenderView(&players[consoleplayer]);
 
 			if ((hw2d = screen->Begin2D(viewactive)))
 			{
diff --git a/src/d_net.cpp b/src/d_net.cpp
index 12de17c9e4a..95765e84cbc 100644
--- a/src/d_net.cpp
+++ b/src/d_net.cpp
@@ -783,7 +783,7 @@ void GetPackets (void)
 		// [RH] Get "ping" times - totally useless, since it's bound to the frequency
 		// packets go out at.
 		lastrecvtime[netconsole] = currrecvtime[netconsole];
-		currrecvtime[netconsole] = I_MSTime ();
+		currrecvtime[netconsole] = I_FPSTime ();
 
 		// check for exiting the game
 		if (netbuffer[0] & NCMD_EXIT)
diff --git a/src/gl/data/gl_data.cpp b/src/gl/data/gl_data.cpp
index 9a7c2e0379f..42fc6e96d6f 100644
--- a/src/gl/data/gl_data.cpp
+++ b/src/gl/data/gl_data.cpp
@@ -55,7 +55,6 @@
 #include "gl/gl_functions.h"
 
 GLRenderSettings glset;
-long gl_frameMS;
 
 EXTERN_CVAR(Int, gl_lightmode)
 EXTERN_CVAR(Bool, gl_brightfog)
diff --git a/src/gl/data/gl_data.h b/src/gl/data/gl_data.h
index a46680ab77f..518f330c902 100644
--- a/src/gl/data/gl_data.h
+++ b/src/gl/data/gl_data.h
@@ -65,6 +65,4 @@ void gl_InitPortals();
 void gl_BuildPortalCoverage(FPortalCoverage *coverage, subsector_t *subsector, const DVector2 &displacement);
 void gl_InitData();
 
-extern long gl_frameMS;
-
 #endif
diff --git a/src/gl/models/gl_models.cpp b/src/gl/models/gl_models.cpp
index 6ef0acbfc47..541a4c36c11 100644
--- a/src/gl/models/gl_models.cpp
+++ b/src/gl/models/gl_models.cpp
@@ -55,7 +55,7 @@
 
 static inline float GetTimeFloat()
 {
-	return (float)gl_frameMS * (float)TICRATE / 1000.0f;
+	return (float)screen->FrameTime * (float)TICRATE / 1000.0f;
 }
 
 CVAR(Bool, gl_interpolate_model_frames, true, CVAR_ARCHIVE)
diff --git a/src/gl/renderer/gl_renderer.h b/src/gl/renderer/gl_renderer.h
index f8d710467ed..e3924ad4086 100644
--- a/src/gl/renderer/gl_renderer.h
+++ b/src/gl/renderer/gl_renderer.h
@@ -171,7 +171,7 @@ class FGLRenderer
 	unsigned char *GetTextureBuffer(FTexture *tex, int &w, int &h);
 	void SetupLevel();
 
-	void RenderView(player_t* player, unsigned int nowtime);
+	void RenderView(player_t* player);
 
 	void RenderScreenQuad();
 	void PostProcessScene(int fixedcm);
diff --git a/src/gl/renderer/gl_renderstate.cpp b/src/gl/renderer/gl_renderstate.cpp
index 67c9c21faf1..1427e235010 100644
--- a/src/gl/renderer/gl_renderstate.cpp
+++ b/src/gl/renderer/gl_renderstate.cpp
@@ -161,7 +161,7 @@ bool FRenderState::ApplyShader()
 	activeShader->muInterpolationFactor.Set(mInterpolationFactor);
 	activeShader->muClipHeight.Set(mClipHeight);
 	activeShader->muClipHeightDirection.Set(mClipHeightDirection);
-	activeShader->muTimer.Set(gl_frameMS * mShaderTimer / 1000.f);
+	activeShader->muTimer.Set(screen->FrameTime * mShaderTimer / 1000.f);
 	activeShader->muAlphaThreshold.Set(mAlphaThreshold);
 	activeShader->muLightIndex.Set(mLightIndex);	// will always be -1 for now
 	activeShader->muClipSplit.Set(mClipSplit);
diff --git a/src/gl/scene/gl_scene.cpp b/src/gl/scene/gl_scene.cpp
index 0f80dae6668..c1351001d17 100644
--- a/src/gl/scene/gl_scene.cpp
+++ b/src/gl/scene/gl_scene.cpp
@@ -785,7 +785,7 @@ sector_t * GLSceneDrawer::RenderViewpoint (AActor * camera, GL_IRECT * bounds, f
 	GLRenderer->mSceneClearColor[0] = 0.0f;
 	GLRenderer->mSceneClearColor[1] = 0.0f;
 	GLRenderer->mSceneClearColor[2] = 0.0f;
-	R_SetupFrame (r_viewpoint, r_viewwindow, camera, gl_frameMS);
+	R_SetupFrame (r_viewpoint, r_viewwindow, camera);
 	SetViewArea();
 
 	GLRenderer->mGlobVis = R_GetGlobVis(r_viewwindow, r_visibility);
@@ -800,8 +800,8 @@ sector_t * GLSceneDrawer::RenderViewpoint (AActor * camera, GL_IRECT * bounds, f
 	GLRenderer->mAngles.Roll.Degrees = r_viewpoint.Angles.Roll.Degrees;
 
 	// Scroll the sky
-	GLRenderer->mSky1Pos = (float)fmod(gl_frameMS * level.skyspeed1, 1024.f) * 90.f/256.f;
-	GLRenderer->mSky2Pos = (float)fmod(gl_frameMS * level.skyspeed2, 1024.f) * 90.f/256.f;
+	GLRenderer->mSky1Pos = (float)fmod(screen->FrameTime * level.skyspeed1, 1024.f) * 90.f/256.f;
+	GLRenderer->mSky2Pos = (float)fmod(screen->FrameTime * level.skyspeed2, 1024.f) * 90.f/256.f;
 
 
 
@@ -878,7 +878,7 @@ sector_t * GLSceneDrawer::RenderViewpoint (AActor * camera, GL_IRECT * bounds, f
 //
 //-----------------------------------------------------------------------------
 
-void FGLRenderer::RenderView (player_t* player, unsigned int nowtime)
+void FGLRenderer::RenderView (player_t* player)
 {
 	checkBenchActive();
 
@@ -891,7 +891,6 @@ void FGLRenderer::RenderView (player_t* player, unsigned int nowtime)
 	// Get this before everything else
 	if (cl_capfps || r_NoInterpolate) r_viewpoint.TicFrac = 1.;
 	else r_viewpoint.TicFrac = I_GetTimeFrac (&r_viewpoint.FrameTime);
-	gl_frameMS = nowtime;
 
 	P_FindParticleSubsectors ();
 
@@ -984,7 +983,7 @@ void GLSceneDrawer::WriteSavePic (player_t *player, FileWriter *file, int width,
 struct FGLInterface : public FRenderer
 {
 	void Precache(uint8_t *texhitlist, TMap<PClassActor*, bool> &actorhitlist) override;
-	void RenderView(player_t *player, unsigned int nowtime) override;
+	void RenderView(player_t *player) override;
 	void WriteSavePic (player_t *player, FileWriter *file, int width, int height) override;
 	void StartSerialize(FSerializer &arc) override;
 	void EndSerialize(FSerializer &arc) override;
@@ -1075,9 +1074,9 @@ void FGLInterface::WriteSavePic (player_t *player, FileWriter *file, int width,
 //
 //===========================================================================
 
-void FGLInterface::RenderView(player_t *player, unsigned int nowtime)
+void FGLInterface::RenderView(player_t *player)
 {
-	GLRenderer->RenderView(player, nowtime);
+	GLRenderer->RenderView(player);
 }
 
 //===========================================================================
diff --git a/src/gl/scene/gl_scenedrawer.h b/src/gl/scene/gl_scenedrawer.h
index 6e4fa143dbe..9209e6dad96 100644
--- a/src/gl/scene/gl_scenedrawer.h
+++ b/src/gl/scene/gl_scenedrawer.h
@@ -60,7 +60,7 @@ class GLSceneDrawer
 	void CheckViewArea(vertex_t *v1, vertex_t *v2, sector_t *frontsector, sector_t *backsector);
 
 	sector_t *RenderViewpoint(AActor * camera, GL_IRECT * bounds, float fov, float ratio, float fovratio, bool mainview, bool toscreen);
-	void RenderView(player_t *player, unsigned int nowtime);
+	void RenderView(player_t *player);
 	void WriteSavePic(player_t *player, FileWriter *file, int width, int height);
 
 	void DrawPSprite(player_t * player, DPSprite *psp, float sx, float sy, bool hudModelStep, int OverrideShader, bool alphatexture);
diff --git a/src/gl/system/gl_framebuffer.h b/src/gl/system/gl_framebuffer.h
index 7d11db921ae..1d85562b352 100644
--- a/src/gl/system/gl_framebuffer.h
+++ b/src/gl/system/gl_framebuffer.h
@@ -12,7 +12,6 @@ class FHardwareTexture;
 class FSimpleVertexBuffer;
 class FGLDebug;
 
-extern long gl_frameMS;
 #ifdef _WIN32
 class OpenGLFrameBuffer : public Win32GLFrameBuffer
 {
diff --git a/src/polyrenderer/poly_renderer.cpp b/src/polyrenderer/poly_renderer.cpp
index 7fe9062b08c..c3389bba596 100644
--- a/src/polyrenderer/poly_renderer.cpp
+++ b/src/polyrenderer/poly_renderer.cpp
@@ -115,7 +115,7 @@ void PolyRenderer::RenderActorView(AActor *actor, bool dontmaplines)
 	
 	DontMapLines = dontmaplines;
 	
-	R_SetupFrame(Viewpoint, Viewwindow, actor, swrenderer::renderTime);
+	R_SetupFrame(Viewpoint, Viewwindow, actor);
 	P_FindParticleSubsectors();
 	PO_LinkToSubsectors();
 
diff --git a/src/posix/cocoa/st_console.mm b/src/posix/cocoa/st_console.mm
index 216e795bd1b..bf08c27eb4b 100644
--- a/src/posix/cocoa/st_console.mm
+++ b/src/posix/cocoa/st_console.mm
@@ -200,7 +200,7 @@
 {
 	explicit TimedUpdater(const Function& function)
 	{
-		const unsigned int currentTime = I_MSTime();
+		const unsigned int currentTime = I_FPSTime();
 
 		if (currentTime - m_previousTime > interval)
 		{
diff --git a/src/r_renderer.h b/src/r_renderer.h
index 0165c33b8a6..54952bc29d1 100644
--- a/src/r_renderer.h
+++ b/src/r_renderer.h
@@ -29,7 +29,7 @@ struct FRenderer
 	virtual void Precache(uint8_t *texhitlist, TMap<PClassActor*, bool> &actorhitlist) = 0;
 
 	// render 3D view
-	virtual void RenderView(player_t *player, unsigned int nowtime) = 0;
+	virtual void RenderView(player_t *player) = 0;
 
 	// Remap voxel palette
 	virtual void RemapVoxels() {}
diff --git a/src/r_utility.cpp b/src/r_utility.cpp
index 70619d832a2..77e747007ea 100644
--- a/src/r_utility.cpp
+++ b/src/r_utility.cpp
@@ -751,7 +751,7 @@ static double QuakePower(double factor, double intensity, double offset)
 //
 //==========================================================================
 
-void R_SetupFrame (FRenderViewpoint &viewpoint, FViewWindow &viewwindow, AActor *actor, unsigned int renderTime)
+void R_SetupFrame (FRenderViewpoint &viewpoint, FViewWindow &viewwindow, AActor *actor)
 {
 	if (actor == NULL)
 	{
@@ -982,7 +982,7 @@ void R_SetupFrame (FRenderViewpoint &viewpoint, FViewWindow &viewwindow, AActor
 
 		if (hom == 3)
 		{
-			hom = ((renderTime / 128) & 1) + 1;
+			hom = ((screen->FrameTime / 128) & 1) + 1;
 		}
 		if (hom == 1)
 		{
@@ -994,7 +994,7 @@ void R_SetupFrame (FRenderViewpoint &viewpoint, FViewWindow &viewwindow, AActor
 		}
 		else if (hom == 4)
 		{
-			color = (renderTime / 32) & 255;
+			color = (screen->FrameTime / 32) & 255;
 		}
 		else
 		{
diff --git a/src/r_utility.h b/src/r_utility.h
index 0254a114ec3..eb108e411a4 100644
--- a/src/r_utility.h
+++ b/src/r_utility.h
@@ -111,7 +111,7 @@ void R_ClearInterpolationPath();
 void R_AddInterpolationPoint(const DVector3a &vec);
 void R_SetViewSize (int blocks);
 void R_SetFOV (FRenderViewpoint &viewpoint, DAngle fov);
-void R_SetupFrame (FRenderViewpoint &viewpoint, FViewWindow &viewwindow, AActor * camera, unsigned int renderTime);
+void R_SetupFrame (FRenderViewpoint &viewpoint, FViewWindow &viewwindow, AActor * camera);
 void R_SetViewAngle (FRenderViewpoint &viewpoint, const FViewWindow &viewwindow);
 
 // Called by startup code.
diff --git a/src/swrenderer/drawers/r_draw.cpp b/src/swrenderer/drawers/r_draw.cpp
index e487462114c..c894e46ce16 100644
--- a/src/swrenderer/drawers/r_draw.cpp
+++ b/src/swrenderer/drawers/r_draw.cpp
@@ -64,7 +64,6 @@ namespace swrenderer
 	int fuzzoffset[FUZZTABLE + 1];
 	int fuzzpos;
 	int fuzzviewheight;
-	unsigned int renderTime;
 
 	int fuzz_random_x_offset[FUZZ_RANDOM_X_SIZE] =
 	{
diff --git a/src/swrenderer/drawers/r_draw.h b/src/swrenderer/drawers/r_draw.h
index 4a31da74bda..4672a4fd315 100644
--- a/src/swrenderer/drawers/r_draw.h
+++ b/src/swrenderer/drawers/r_draw.h
@@ -35,7 +35,6 @@ namespace swrenderer
 	extern FDynamicColormap ShadeFakeColormap[16];
 	extern uint8_t identitymap[256];
 	extern FDynamicColormap identitycolormap;
-	extern unsigned int renderTime;
 
 	// Constant arrays used for psprite clipping and initializing clipping.
 	extern short zeroarray[MAXWIDTH];
diff --git a/src/swrenderer/r_swrenderer.cpp b/src/swrenderer/r_swrenderer.cpp
index 69f5b2f433c..19bf055a637 100644
--- a/src/swrenderer/r_swrenderer.cpp
+++ b/src/swrenderer/r_swrenderer.cpp
@@ -170,9 +170,8 @@ void FSoftwareRenderer::Precache(uint8_t *texhitlist, TMap<PClassActor*, bool> &
 	}
 }
 
-void FSoftwareRenderer::RenderView(player_t *player, unsigned int nowtime)
+void FSoftwareRenderer::RenderView(player_t *player)
 {
-	renderTime = nowtime;
 	if (r_polyrenderer)
 	{
 		PolyRenderer::Instance()->Viewpoint = r_viewpoint;
diff --git a/src/swrenderer/r_swrenderer.h b/src/swrenderer/r_swrenderer.h
index 05d00ecec04..19f75758f50 100644
--- a/src/swrenderer/r_swrenderer.h
+++ b/src/swrenderer/r_swrenderer.h
@@ -13,7 +13,7 @@ struct FSoftwareRenderer : public FRenderer
 	void Precache(uint8_t *texhitlist, TMap<PClassActor*, bool> &actorhitlist) override;
 
 	// render 3D view
-	void RenderView(player_t *player, unsigned int nowtime) override;
+	void RenderView(player_t *player) override;
 
 	// Remap voxel palette
 	void RemapVoxels() override;
diff --git a/src/swrenderer/scene/r_scene.cpp b/src/swrenderer/scene/r_scene.cpp
index c2c63556e44..4667f25ebf1 100644
--- a/src/swrenderer/scene/r_scene.cpp
+++ b/src/swrenderer/scene/r_scene.cpp
@@ -136,7 +136,7 @@ namespace swrenderer
 		MaskedCycles.Reset();
 		DrawerWaitCycles.Reset();
 		
-		R_SetupFrame(MainThread()->Viewport->viewpoint, MainThread()->Viewport->viewwindow, actor, renderTime);
+		R_SetupFrame(MainThread()->Viewport->viewpoint, MainThread()->Viewport->viewwindow, actor);
 
 		if (APART(R_OldBlend)) NormalLight.Maps = realcolormaps.Maps;
 		else NormalLight.Maps = realcolormaps.Maps + NUMCOLORMAPS * 256 * R_OldBlend;
diff --git a/src/swrenderer/things/r_voxel.cpp b/src/swrenderer/things/r_voxel.cpp
index beb7a474b88..75b0a2c0778 100644
--- a/src/swrenderer/things/r_voxel.cpp
+++ b/src/swrenderer/things/r_voxel.cpp
@@ -135,7 +135,7 @@ namespace swrenderer
 		int voxelspin = (thing->flags & MF_DROPPED) ? voxel->DroppedSpin : voxel->PlacedSpin;
 		if (voxelspin != 0)
 		{
-			DAngle ang = double(renderTime) * voxelspin / 1000;
+			DAngle ang = double(screen->FrameTime) * voxelspin / 1000;
 			vis->Angle -= ang;
 		}
 
diff --git a/src/v_video.cpp b/src/v_video.cpp
index d47ece2015d..5f774a648e2 100644
--- a/src/v_video.cpp
+++ b/src/v_video.cpp
@@ -870,7 +870,7 @@ void DFrameBuffer::DrawRateStuff ()
 	// Draws frame time and cumulative fps
 	if (vid_fps)
 	{
-		uint32_t ms = I_FPSTime();
+		uint32_t ms = screen->FrameTime;
 		uint32_t howlong = ms - LastMS;
 		if ((signed)howlong >= 0)
 		{
diff --git a/src/v_video.h b/src/v_video.h
index fc4d3924ddc..5934a3706a5 100644
--- a/src/v_video.h
+++ b/src/v_video.h
@@ -453,6 +453,7 @@ class DFrameBuffer : public DSimpleCanvas
 	// The original size of the framebuffer as selected in the video menu.
 	int VideoWidth = 0;
 	int VideoHeight = 0;
+	uint32_t FrameTime = 0;
 
 protected:
 	void DrawRateStuff ();