diff --git a/src/counters/timer.rs b/src/counters/timer.rs
index 8b19055..88f7510 100644
--- a/src/counters/timer.rs
+++ b/src/counters/timer.rs
@@ -6,7 +6,7 @@ use web_time::Instant;
 pub struct Timer {
     enabled: bool,
     time: f64,
-    start: Option<f64>,
+    start: Option<Instant>,
 }
 
 impl Timer {
@@ -38,7 +38,7 @@ impl Timer {
     pub fn start(&mut self) {
         if self.enabled {
             self.time = 0.0;
-            self.start = Some(Instant::now().elapsed().as_secs_f64());
+            self.start = Some(Instant::now());
         }
     }
 
@@ -46,7 +46,7 @@ impl Timer {
     pub fn pause(&mut self) {
         if self.enabled {
             if let Some(start) = self.start {
-                self.time += Instant::now().elapsed().as_secs_f64() - start;
+                self.time += start.elapsed().as_secs_f64();
             }
             self.start = None;
         }
@@ -55,7 +55,7 @@ impl Timer {
     /// Resume the timer.
     pub fn resume(&mut self) {
         if self.enabled {
-            self.start = Some(Instant::now().elapsed().as_secs_f64());
+            self.start = Some(Instant::now());
         }
     }
 
diff --git a/src/integrations/rapier/harness_plugin.rs b/src/integrations/rapier/harness_plugin.rs
index 981ecb9..136a4ba 100644
--- a/src/integrations/rapier/harness_plugin.rs
+++ b/src/integrations/rapier/harness_plugin.rs
@@ -58,7 +58,7 @@ impl HarnessPlugin for FluidsHarnessPlugin {
     }
 
     fn step(&mut self, physics: &mut PhysicsState, _run_state: &RunState) {
-        let step_time = Instant::now().elapsed().as_secs_f64();
+        let step_time = Instant::now();
         let dt = physics.integration_parameters.dt;
         self.fluids_pipeline.step(
             &physics.gravity,
@@ -67,7 +67,7 @@ impl HarnessPlugin for FluidsHarnessPlugin {
             &mut physics.bodies,
         );
 
-        self.step_time = Instant::now().elapsed().as_secs_f64() - step_time;
+        self.step_time = step_time.elapsed().as_secs_f64();
     }
 
     fn profiling_string(&self) -> String {
diff --git a/src/integrations/rapier/testbed_plugin.rs b/src/integrations/rapier/testbed_plugin.rs
index f57b749..c3c0670 100644
--- a/src/integrations/rapier/testbed_plugin.rs
+++ b/src/integrations/rapier/testbed_plugin.rs
@@ -331,7 +331,7 @@ impl TestbedPlugin for FluidsTestbedPlugin {
     }
 
     fn step(&mut self, physics: &mut PhysicsState) {
-        let step_time = Instant::now().elapsed().as_secs_f64();
+        let step_time = Instant::now();
         let dt = physics.integration_parameters.dt;
         self.fluids_pipeline.step(
             &physics.gravity,
@@ -340,7 +340,7 @@ impl TestbedPlugin for FluidsTestbedPlugin {
             &mut physics.bodies,
         );
 
-        self.step_time = Instant::now().elapsed().as_secs_f64() - step_time;
+        self.step_time = step_time.elapsed().as_secs_f64();
     }
 
     fn draw(