diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index 44d6c71..2d4395e 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -716,9 +716,11 @@
     def test_timeout(self):
         q = multiprocessing.Queue()
         start = time.time()
-        self.assertRaises(pyqueue.Empty, q.get, True, 0.2)
+        self.assertRaises(pyqueue.Empty, q.get, True, 0.200)
         delta = time.time() - start
-        self.assertGreaterEqual(delta, 0.18)
+        # Tolerate a delta of 30 ms because of the bad clock resolution on
+        # Windows (usually 15.6 ms)
+        self.assertGreaterEqual(delta, 0.170)
 
 #
 #