diff --git a/TODO b/TODO
index 83603d1c6..9cc333d46 100644
--- a/TODO
+++ b/TODO
@@ -1,9 +1,10 @@
 ☐ Save/load UI
     ✔ Basic version @done(20-01-03 15:27)
     ☐ Multiple slots etc.
+☐ Add 'force flush all' to Rasterizer interface + impls
 ☐ Custom texture cache
 ☐ Review constructor/initialization code
-☐ Core timing events
+✔ Core timing events @done(20-01-12 15:14)
 ☐ Serialize codeset with an apploader reference instead
 ✔ Review base class serialization everywhere @done(20-01-10 23:47)
     Make sure that all base/derived relationships are registered
diff --git a/src/core/core.cpp b/src/core/core.cpp
index fcd1268da..fa60035dc 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -434,6 +434,7 @@ void System::Reset() {
 template <class Archive>
 void System::serialize(Archive& ar, const unsigned int file_version) {
     Memory::RasterizerFlushAndInvalidateRegion(0, 0xFFFFFFFF);
+    ar&* timing.get();
     ar&* cpu_core.get();
     ar&* service_manager.get();
     ar& GPU::g_regs;
diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp
index 976a6f3ba..4b2729a76 100644
--- a/src/core/core_timing.cpp
+++ b/src/core/core_timing.cpp
@@ -11,6 +11,8 @@
 
 namespace Core {
 
+Timing* Timing::deserializing = nullptr;
+
 // Sort by time, unless the times are the same, in which case sort by the order added to the queue
 bool Timing::Event::operator>(const Event& right) const {
     return std::tie(time, fifo_order) > std::tie(right.time, right.fifo_order);
@@ -26,7 +28,9 @@ TimingEventType* Timing::RegisterEvent(const std::string& name, TimedCallback ca
     auto info = event_types.emplace(name, TimingEventType{});
     TimingEventType* event_type = &info.first->second;
     event_type->name = &info.first->first;
-    event_type->callback = callback;
+    if (callback != nullptr) {
+        event_type->callback = callback;
+    }
     return event_type;
 }
 
@@ -129,7 +133,9 @@ void Timing::Advance() {
             LOG_ERROR(Core, "Unknown queued event");
             continue;
         }
-        evt.type->callback(evt.userdata, global_timer - evt.time);
+        if (evt.type->callback != nullptr) {
+            evt.type->callback(evt.userdata, global_timer - evt.time);
+        }
     }
 
     is_global_timer_sane = false;
diff --git a/src/core/core_timing.h b/src/core/core_timing.h
index 229fc37f4..1e6a3b021 100644
--- a/src/core/core_timing.h
+++ b/src/core/core_timing.h
@@ -23,6 +23,8 @@
 #include <string>
 #include <unordered_map>
 #include <vector>
+#include <boost/serialization/split_member.hpp>
+#include <boost/serialization/vector.hpp>
 #include "common/common_types.h"
 #include "common/logging/log.h"
 #include "common/threadsafe_queue.h"
@@ -190,6 +192,8 @@ public:
     s64 GetDowncount() const;
 
 private:
+    static Timing* deserializing;
+
     struct Event {
         s64 time;
         u64 fifo_order;
@@ -198,6 +202,29 @@ private:
 
         bool operator>(const Event& right) const;
         bool operator<(const Event& right) const;
+
+    private:
+        template <class Archive>
+        void save(Archive& ar, const unsigned int) const {
+            ar& time;
+            ar& fifo_order;
+            ar& userdata;
+            std::string name = *(type->name);
+            ar << name;
+        }
+
+        template <class Archive>
+        void load(Archive& ar, const unsigned int) {
+            ar& time;
+            ar& fifo_order;
+            ar& userdata;
+            std::string name;
+            ar >> name;
+            type = Timing::deserializing->RegisterEvent(name, nullptr);
+        }
+        friend class boost::serialization::access;
+
+        BOOST_SERIALIZATION_SPLIT_MEMBER()
     };
 
     static constexpr int MAX_SLICE_LENGTH = 20000;
@@ -229,6 +256,21 @@ private:
     // executing the first cycle of each slice to prepare the slice length and downcount for
     // that slice.
     bool is_global_timer_sane = true;
+
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int) {
+        // event_types set during initialization of other things
+        deserializing = this;
+        MoveEvents();
+        ar& global_timer;
+        ar& slice_length;
+        ar& downcount;
+        ar& event_queue;
+        ar& event_fifo_id;
+        ar& idled_cycles;
+        deserializing = nullptr;
+    }
+    friend class boost::serialization::access;
 };
 
 } // namespace Core
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index c64e24071..0286e210d 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -172,6 +172,7 @@ private:
         ar& ready_queue;
         ar& wakeup_callback_table;
         ar& thread_list;
+        SwitchContext(current_thread.get());
     }
 };