diff --git a/reactivex/operators/_timeout.py b/reactivex/operators/_timeout.py
index da64cf319..70b1e9f63 100644
--- a/reactivex/operators/_timeout.py
+++ b/reactivex/operators/_timeout.py
@@ -9,10 +9,12 @@
     SingleAssignmentDisposable,
 )
 from reactivex.internal import curry_flip
-from reactivex.scheduler import TimeoutScheduler
+from reactivex.scheduler import EventLoopScheduler
 
 _T = TypeVar("_T")
 
+_default_timeout_scheduler = EventLoopScheduler()
+
 
 @curry_flip
 def timeout_(
@@ -48,7 +50,7 @@ def subscribe(
         observer: abc.ObserverBase[_T],
         scheduler_: abc.SchedulerBase | None = None,
     ) -> abc.DisposableBase:
-        _scheduler = scheduler or scheduler_ or TimeoutScheduler.singleton()
+        _scheduler = scheduler or scheduler_ or _default_timeout_scheduler
 
         switched = [False]
         _id = [0]