diff --git a/rosbot_gazebo/test/test_diff_drive_simulation.py b/rosbot_gazebo/test/test_diff_drive_simulation.py
index 52c72b23..135735fa 100644
--- a/rosbot_gazebo/test/test_diff_drive_simulation.py
+++ b/rosbot_gazebo/test/test_diff_drive_simulation.py
@@ -63,7 +63,10 @@ def test_diff_drive_simulation():
         # 0.9 m/s and 3.0 rad/s are controller's limits defined in
         #   rosbot_controller/config/diff_drive_controller.yaml
         node.set_destination_speed(0.9, 0.0, 0.0)
-        assert node.vel_stabilization_time_event.wait(timeout=20.0), "Simulation crashed!"
+        assert node.vel_stabilization_time_event.wait(timeout=20.0), (
+            "The simulation is running slowly or has crashed! The time elapsed since setting the"
+            f" target speed is: {(node.current_time - node.goal_received_time):.1f}."
+        )
         assert (
             node.controller_odom_flag
         ), "ROSbot does not move properly in x direction. Check rosbot_base_controller!"
@@ -72,7 +75,10 @@ def test_diff_drive_simulation():
         ), "ROSbot does not move properly in x direction. Check ekf_filter_node!"
 
         node.set_destination_speed(0.0, 0.0, 3.0)
-        assert node.vel_stabilization_time_event.wait(timeout=20.0), "Simulation crashed!"
+        assert node.vel_stabilization_time_event.wait(timeout=20.0), (
+            "The simulation is running slowly or has crashed! The time elapsed since setting the"
+            f" target speed is: {(node.current_time - node.goal_received_time):.1f}."
+        )
         assert (
             node.controller_odom_flag
         ), "ROSbot does not rotate properly. Check rosbot_base_controller!"
diff --git a/rosbot_gazebo/test/test_mecanum_simulation.py b/rosbot_gazebo/test/test_mecanum_simulation.py
index 704829b0..e827ad80 100644
--- a/rosbot_gazebo/test/test_mecanum_simulation.py
+++ b/rosbot_gazebo/test/test_mecanum_simulation.py
@@ -63,7 +63,10 @@ def test_mecanum_simulation():
         # 0.9 m/s and 3.0 rad/s are controller's limits defined in
         #   rosbot_controller/config/mecanum_drive_controller.yaml
         node.set_destination_speed(0.9, 0.0, 0.0)
-        assert node.vel_stabilization_time_event.wait(timeout=20.0), "Simulation crashed!"
+        assert node.vel_stabilization_time_event.wait(timeout=20.0), (
+            "The simulation is running slowly or has crashed! The time elapsed since setting the"
+            f" target speed is: {(node.current_time - node.goal_received_time):.1f}."
+        )
         assert (
             node.controller_odom_flag
         ), "ROSbot does not move properly in x direction. Check rosbot_base_controller!"
@@ -72,7 +75,10 @@ def test_mecanum_simulation():
         ), "ROSbot does not move properly in x direction. Check ekf_filter_node!"
 
         node.set_destination_speed(0.0, 0.9, 0.0)
-        assert node.vel_stabilization_time_event.wait(timeout=20.0), "Simulation crashed!"
+        assert node.vel_stabilization_time_event.wait(timeout=20.0), (
+            "The simulation is running slowly or has crashed! The time elapsed since setting the"
+            f" target speed is: {(node.current_time - node.goal_received_time):.1f}."
+        )
         assert (
             node.controller_odom_flag
         ), "ROSbot does not move properly in y direction. Check rosbot_base_controller!"
@@ -81,7 +87,10 @@ def test_mecanum_simulation():
         ), "ROSbot does not move properly in y direction. Check ekf_filter_node!"
 
         node.set_destination_speed(0.0, 0.0, 3.0)
-        assert node.vel_stabilization_time_event.wait(timeout=20.0), "Simulation crashed!"
+        assert node.vel_stabilization_time_event.wait(timeout=20.0), (
+            "The simulation is running slowly or has crashed! The time elapsed since setting the"
+            f" target speed is: {(node.current_time - node.goal_received_time):.1f}."
+        )
         assert (
             node.controller_odom_flag
         ), "ROSbot does not rotate properly. Check rosbot_xl_base_controller!"
diff --git a/rosbot_gazebo/test/test_utils.py b/rosbot_gazebo/test/test_utils.py
index 60402b01..ed111f40 100644
--- a/rosbot_gazebo/test/test_utils.py
+++ b/rosbot_gazebo/test/test_utils.py
@@ -117,8 +117,8 @@ def timer_callback(self):
         self.publish_cmd_vel_messages()
         self.lookup_transform_odom()
 
-        current_time_s = 1e-9 * self.get_clock().now().nanoseconds
-        if current_time_s > self.goal_received_time + self.VELOCITY_STABILIZATION_DELAY:
+        self.current_time = 1e-9 * self.get_clock().now().nanoseconds
+        if self.current_time > self.goal_received_time + self.VELOCITY_STABILIZATION_DELAY:
             self.vel_stabilization_time_event.set()
 
     def scan_callback(self, data: LaserScan):