diff --git a/src/core/save_state_version.h b/src/core/save_state_version.h
index 215b4ea00..5e17ec4a0 100644
--- a/src/core/save_state_version.h
+++ b/src/core/save_state_version.h
@@ -2,7 +2,7 @@
 #include "types.h"
 
 static constexpr u32 SAVE_STATE_MAGIC = 0x43435544;
-static constexpr u32 SAVE_STATE_VERSION = 42;
+static constexpr u32 SAVE_STATE_VERSION = 43;
 static constexpr u32 SAVE_STATE_MINIMUM_VERSION = 42;
 
 #pragma pack(push, 4)
diff --git a/src/core/system.cpp b/src/core/system.cpp
index fd07881eb..04ce5618d 100644
--- a/src/core/system.cpp
+++ b/src/core/system.cpp
@@ -93,7 +93,7 @@ static float s_worst_frame_time = 0.0f;
 static float s_average_frame_time = 0.0f;
 static u32 s_last_frame_number = 0;
 static u32 s_last_internal_frame_number = 0;
-static u32 s_last_global_tick_counter = 0;
+static u64 s_last_global_tick_counter = 0;
 static Common::Timer s_fps_timer;
 static Common::Timer s_frame_timer;
 
@@ -1229,7 +1229,7 @@ void UpdatePerformanceCounters()
     return;
 
   const float frames_presented = static_cast<float>(s_frame_number - s_last_frame_number);
-  const u32 global_tick_counter = TimingEvents::GetGlobalTickCounter();
+  const u64 global_tick_counter = TimingEvents::GetGlobalTickCounter();
 
   s_worst_frame_time = s_worst_frame_time_accumulator;
   s_worst_frame_time_accumulator = 0.0f;
diff --git a/src/core/timing_event.cpp b/src/core/timing_event.cpp
index 8197eff80..bc6dfd1b9 100644
--- a/src/core/timing_event.cpp
+++ b/src/core/timing_event.cpp
@@ -12,10 +12,10 @@ static TimingEvent* s_active_events_head;
 static TimingEvent* s_active_events_tail;
 static TimingEvent* s_current_event = nullptr;
 static u32 s_active_event_count = 0;
-static u32 s_global_tick_counter = 0;
-static u32 s_last_event_run_time = 0;
+static u64 s_global_tick_counter = 0;
+static u64 s_last_event_run_time = 0;
 
-u32 GetGlobalTickCounter()
+u64 GetGlobalTickCounter()
 {
   return s_global_tick_counter;
 }
@@ -255,7 +255,8 @@ void RunEvents()
 {
   DebugAssert(!s_current_event);
 
-  TickCount pending_ticks = (s_global_tick_counter + CPU::GetPendingTicks()) - s_last_event_run_time;
+  TickCount pending_ticks =
+    static_cast<TickCount>((s_global_tick_counter + static_cast<u32>(CPU::GetPendingTicks())) - s_last_event_run_time);
   CPU::ResetPendingTicks();
   while (pending_ticks > 0)
   {
@@ -298,7 +299,16 @@ void RunEvents()
 
 bool DoState(StateWrapper& sw)
 {
-  sw.Do(&s_global_tick_counter);
+  if (sw.IsReading() && sw.GetVersion() < 43)
+  {
+    u32 global_tick_counter32;
+    sw.Do(&global_tick_counter32);
+    s_global_tick_counter = ZeroExtend64(global_tick_counter32);
+  }
+  else
+  {
+    sw.Do(&s_global_tick_counter);
+  }
 
   if (sw.IsReading())
   {
@@ -333,7 +343,16 @@ bool DoState(StateWrapper& sw)
       event->m_interval = interval;
     }
 
-    sw.Do(&s_last_event_run_time);
+    if (sw.GetVersion() < 43)
+    {
+      u32 last_event_run_time32;
+      sw.Do(&last_event_run_time32);
+      s_last_event_run_time = ZeroExtend64(last_event_run_time32);
+    }
+    else
+    {
+      sw.Do(&s_last_event_run_time);
+    }
 
     Log_DevPrintf("Loaded %u events from save state.", event_count);
     SortEvents();
diff --git a/src/core/timing_event.h b/src/core/timing_event.h
index ca58ddbdf..758245dd0 100644
--- a/src/core/timing_event.h
+++ b/src/core/timing_event.h
@@ -71,7 +71,7 @@ public:
 
 namespace TimingEvents {
 
-u32 GetGlobalTickCounter();
+u64 GetGlobalTickCounter();
 
 void Initialize();
 void Reset();