diff --git a/can/broadcastmanager.py b/can/broadcastmanager.py
index 398114a59..ab2a5a032 100644
--- a/can/broadcastmanager.py
+++ b/can/broadcastmanager.py
@@ -289,11 +289,12 @@ def start(self) -> None:
 
     def _run(self) -> None:
         msg_index = 0
-        msg_due_time_ns = time.perf_counter_ns()
 
         if USE_WINDOWS_EVENTS:
             # Make sure the timer is non-signaled before entering the loop
             win32event.WaitForSingleObject(self.event.handle, 0)
+        else:
+            msg_due_time_ns = time.perf_counter_ns()
 
         while not self.stopped:
             # Prevent calling bus.send from multiple threads