diff --git a/http-test.cabal b/http-test.cabal
--- a/http-test.cabal
+++ b/http-test.cabal
@@ -1,5 +1,5 @@
 Name:                http-test
-Version:             0.2.1.0
+Version:             0.2.2.0
 synopsis:            Test framework for HTTP APIs
 Description:         A simple framework for making assertions about the 
                      responses of HTTP servers.
diff --git a/src/Test/HTTP.hs b/src/Test/HTTP.hs
--- a/src/Test/HTTP.hs
+++ b/src/Test/HTTP.hs
@@ -181,9 +181,10 @@
 
 -- | Print the number of seconds elapsed, with a prefix
 
-toc :: String -> Session ()
+toc :: String -> Session Double
 toc s = do
   last <- fmap timer $ S.get
   now <- liftIO $ getCurrentTime
   let df = diffUTCTime now last
   liftIO $ putStrLn $ s ++ " "++show df
+  return $ realToFrac df