diff --git a/rpcs3/Emu/Cell/Modules/cellCamera.cpp b/rpcs3/Emu/Cell/Modules/cellCamera.cpp
index 7a3497733f..b57a676dbd 100644
--- a/rpcs3/Emu/Cell/Modules/cellCamera.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellCamera.cpp
@@ -976,7 +976,7 @@ error_code cellCameraStart(s32 dev_num)
 		return CELL_CAMERA_ERROR_DEVICE_NOT_FOUND;
 	}
 
-	g_camera.timer.Start();
+	g_camera.start_timestamp = get_guest_system_time();
 	g_camera.is_streaming = true;
 
 	return CELL_OK;
@@ -1066,7 +1066,7 @@ error_code cellCameraReadEx(s32 dev_num, vm::ptr<CellCameraReadEx> read)
 
 	if (read) // NULL returns CELL_OK
 	{
-		read->timestamp = g_camera.timer.GetElapsedTimeInMicroSec();
+		read->timestamp = (get_guest_system_time() - g_camera.start_timestamp);
 		read->frame = g_camera.frame_num;
 		read->bytesread = g_camera.is_streaming ? get_video_buffer_size(g_camera.info) : 0;
 
@@ -1123,9 +1123,6 @@ error_code cellCameraStop(s32 dev_num)
 
 	g_camera.is_streaming = false;
 
-	std::lock_guard lock(g_camera.mutex);
-	g_camera.timer.Stop();
-
 	return CELL_OK;
 }
 
@@ -1300,7 +1297,7 @@ void camera_context::operator()()
 						const u64 camera_id = 0;
 
 						data2 = image_data_size << 32 | buffer_number << 16 | camera_id;
-						data3 = timer.GetElapsedTimeInMicroSec();	// timestamp
+						data3 = get_guest_system_time() - start_timestamp;	// timestamp
 					}
 					else // CELL_CAMERA_READ_FUNCCALL, also default
 					{
diff --git a/rpcs3/Emu/Cell/Modules/cellCamera.h b/rpcs3/Emu/Cell/Modules/cellCamera.h
index 7f1725e70d..1f3e8d9bb7 100644
--- a/rpcs3/Emu/Cell/Modules/cellCamera.h
+++ b/rpcs3/Emu/Cell/Modules/cellCamera.h
@@ -417,7 +417,7 @@ public:
 
 	shared_mutex mutex;
 	shared_mutex mutex_notify_data_map;
-	Timer timer;
+	u64 start_timestamp = 0;
 
 	atomic_t<u8> read_mode{CELL_CAMERA_READ_FUNCCALL};
 	atomic_t<bool> is_streaming{false};
diff --git a/rpcs3/Emu/Cell/Modules/cellGem.cpp b/rpcs3/Emu/Cell/Modules/cellGem.cpp
index 004ba61717..fa48caabce 100644
--- a/rpcs3/Emu/Cell/Modules/cellGem.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellGem.cpp
@@ -106,7 +106,7 @@ struct gem_config
 
 	shared_mutex mtx;
 
-	Timer timer;
+	u64 start_timestamp = 0;
 
 	// helper functions
 	bool is_controller_ready(u32 gem_num) const
@@ -738,7 +738,7 @@ error_code cellGemGetInertialState(u32 gem_num, u32 state_flag, u64 timestamp, v
 	{
 		ds3_input_to_ext(gem_num, inertial_state->ext);
 
-		inertial_state->timestamp = gem.timer.GetElapsedTimeInMicroSec();
+		inertial_state->timestamp = (get_guest_system_time() - gem.start_timestamp);
 		inertial_state->counter = gem.inertial_counter++;
 		inertial_state->accelerometer[0] = 10;
 	}
@@ -876,7 +876,7 @@ error_code cellGemGetState(u32 gem_num, u32 flag, u64 time_parameter, vm::ptr<Ce
 		ds3_input_to_ext(gem_num, gem_state->ext);
 
 		gem_state->tracking_flags = CELL_GEM_TRACKING_FLAG_POSITION_TRACKED | CELL_GEM_TRACKING_FLAG_VISIBLE;
-		gem_state->timestamp = gem.timer.GetElapsedTimeInMicroSec();
+		gem_state->timestamp = (get_guest_system_time() - gem.start_timestamp);
 		gem_state->quat[3] = 1.f;
 
 		return CELL_OK;
@@ -1006,7 +1006,7 @@ error_code cellGemInit(ppu_thread& ppu, vm::cptr<CellGemAttribute> attribute)
 	}
 
 	// TODO: is this correct?
-	gem.timer.Start();
+	gem.start_timestamp = get_guest_system_time();
 
 	return CELL_OK;
 }
@@ -1153,7 +1153,7 @@ error_code cellGemReset(u32 gem_num)
 	gem.reset_controller(gem_num);
 
 	// TODO: is this correct?
-	gem.timer.Start();
+	gem.start_timestamp = get_guest_system_time();
 
 	return CELL_OK;
 }