diff --git a/IPython/core/tests/test_magic.py b/IPython/core/tests/test_magic.py
index 1f70569..42a731f 100644
--- a/IPython/core/tests/test_magic.py
+++ b/IPython/core/tests/test_magic.py
@@ -283,13 +283,13 @@ def test_tb_syntaxerror():
 def test_time():
     ip = get_ipython()
     
-    with tt.AssertPrints("CPU times: user 0 ns, sys: 0 ns, total: 0 ns"):
+    with tt.AssertPrints("CPU times: user "):
         ip.run_cell("%time None")
     
     ip.run_cell("def f(kmjy):\n"
                 "    %time print (2*kmjy)")
     
-    with tt.AssertPrints("CPU times: user 0 ns, sys: 0 ns, total: 0 ns"):
+    with tt.AssertPrints("CPU times: user "):
         with tt.AssertPrints("hihi", suppress=False):
             ip.run_cell("f('hi')")