diff --git a/apps/openmw/engine.cpp b/apps/openmw/engine.cpp
index 6c95700b3..32ff20ba7 100644
--- a/apps/openmw/engine.cpp
+++ b/apps/openmw/engine.cpp
@@ -128,7 +128,10 @@ void OMW::Engine::frame(float frametime)
             }
 
             if (!guiActive)
-                mEnvironment.getWorld()->advanceTimeByFrame(frametime);
+            {
+                double hours = (frametime * mEnvironment.getWorld()->getTimeScaleFactor()) / 3600.0;
+                mEnvironment.getWorld()->advanceTime(hours, true);
+            }
         }
         osg::Timer_t afterScriptTick = osg::Timer::instance()->tick();
 
diff --git a/apps/openmw/mwbase/world.hpp b/apps/openmw/mwbase/world.hpp
index 636370342..a3d293d95 100644
--- a/apps/openmw/mwbase/world.hpp
+++ b/apps/openmw/mwbase/world.hpp
@@ -185,12 +185,9 @@ namespace MWBase
 
             virtual void disable (const MWWorld::Ptr& ptr) = 0;
 
-            virtual void advanceTime (double hours) = 0;
+            virtual void advanceTime (double hours, bool incremental = false) = 0;
             ///< Advance in-game time.
 
-            virtual void advanceTimeByFrame (double frametime) = 0;
-            ///< Advance in-game time by the duration of a frame.
-
             virtual void setHour (double hour) = 0;
             ///< Set in-game time hour.
 
diff --git a/apps/openmw/mwworld/weather.cpp b/apps/openmw/mwworld/weather.cpp
index 5c2a81c09..52609f21a 100644
--- a/apps/openmw/mwworld/weather.cpp
+++ b/apps/openmw/mwworld/weather.cpp
@@ -670,19 +670,12 @@ osg::Vec3f WeatherManager::getStormDirection() const
     return mStormDirection;
 }
 
-void WeatherManager::advanceTime(double hours)
+void WeatherManager::advanceTime(double hours, bool incremental)
 {
-    // This is called when the player sleeps/waits, serves jail time, travels, or trains.
-    // In Morrowind, when any of those events occur, all weather transitions are immediately applied, regardless of
-    // whatever transition time might have been remaining.
-    mTimePassed += hours;
-    mFastForward = true;
-}
-
-void WeatherManager::advanceTimeByFrame(double hours)
-{
-    // Called when time is advanced by an incremental update for each frame.
+    // In Morrowind, when the player sleeps/waits, serves jail time, travels, or trains, all weather transitions are
+    // immediately applied, regardless of whatever transition time might have been remaining.
     mTimePassed += hours;
+    mFastForward = (!mFastForward && !incremental) ? true : mFastForward;
 }
 
 unsigned int WeatherManager::getWeatherID() const
diff --git a/apps/openmw/mwworld/weather.hpp b/apps/openmw/mwworld/weather.hpp
index cdbe14dfa..c808b029b 100644
--- a/apps/openmw/mwworld/weather.hpp
+++ b/apps/openmw/mwworld/weather.hpp
@@ -206,8 +206,7 @@ namespace MWWorld
 
         osg::Vec3f getStormDirection() const;
 
-        void advanceTime(double hours);
-        void advanceTimeByFrame(double hours);
+        void advanceTime(double hours, bool incremental);
 
         unsigned int getWeatherID() const;
 
diff --git a/apps/openmw/mwworld/worldimp.cpp b/apps/openmw/mwworld/worldimp.cpp
index 56c7415a2..5f9c8f8d3 100644
--- a/apps/openmw/mwworld/worldimp.cpp
+++ b/apps/openmw/mwworld/worldimp.cpp
@@ -787,30 +787,11 @@ namespace MWWorld
         }
     }
 
-    void World::advanceTime (double hours)
+    void World::advanceTime (double hours, bool incremental)
     {
         MWBase::Environment::get().getMechanicsManager()->advanceTime(static_cast<float>(hours * 3600));
 
-        mWeatherManager->advanceTime (hours);
-
-        hours += mGlobalVariables["gamehour"].getFloat();
-
-        setHour (hours);
-
-        int days = static_cast<int>(hours / 24);
-
-        if (days>0)
-            mGlobalVariables["dayspassed"].setInteger (
-                days + mGlobalVariables["dayspassed"].getInteger());
-    }
-
-    void World::advanceTimeByFrame (double frametime)
-    {
-        double hours = (frametime * getTimeScaleFactor()) / 3600.0;
-
-        MWBase::Environment::get().getMechanicsManager()->advanceTime(static_cast<float>(hours * 3600));
-
-        mWeatherManager->advanceTimeByFrame (hours);
+        mWeatherManager->advanceTime (hours, incremental);
 
         hours += mGlobalVariables["gamehour"].getFloat();
 
diff --git a/apps/openmw/mwworld/worldimp.hpp b/apps/openmw/mwworld/worldimp.hpp
index 80fe6d850..241dacc8a 100644
--- a/apps/openmw/mwworld/worldimp.hpp
+++ b/apps/openmw/mwworld/worldimp.hpp
@@ -274,12 +274,9 @@ namespace MWWorld
 
             virtual void disable (const Ptr& ptr);
 
-            virtual void advanceTime (double hours);
+            virtual void advanceTime (double hours, bool incremental = false);
             ///< Advance in-game time.
 
-            virtual void advanceTimeByFrame (double frametime);
-            ///< Advance in-game time by the duration of a frame.
-
             virtual void setHour (double hour);
             ///< Set in-game time hour.