Switch to using the time package, rather than old-time

System/Directory.hs

@@ -105,7 +105,10 @@ import Foreign.C
 
 {-# CFILES cbits/directory.c #-}
 
-import System.Time             ( ClockTime(..) )
+import Data.Time
+#ifndef mingw32_HOST_OS
+import Data.Time.Clock.POSIX
+#endif
 
 #ifdef __GLASGOW_HASKELL__
 
@@ -986,23 +989,18 @@ The operation may fail with:
 
 -}
 
-getModificationTime :: FilePath -> IO ClockTime
+getModificationTime :: FilePath -> IO UTCTime
 getModificationTime name = do
 #ifdef mingw32_HOST_OS
  -- ToDo: use Win32 API
  withFileStatus "getModificationTime" name $ \ st -> do
  modificationTime st
 #else
   stat <- Posix.getFileStatus name
-  let mod_time :: Posix.EpochTime 
+  let mod_time :: Posix.EpochTime
       mod_time = Posix.modificationTime stat
-      dbl_time :: Double
-      dbl_time = realToFrac mod_time
-  return (TOD (round dbl_time) 0)
+  return $ posixSecondsToUTCTime $ realToFrac mod_time
 #endif
-   -- For info
-   -- round :: (RealFrac a, Integral b => a -> b
-   -- realToFrac :: (Real a, Fractional b) => a -> b
 
 #endif /* __GLASGOW_HASKELL__ */
 
@@ -1023,7 +1021,7 @@ withFileOrSymlinkStatus loc name f = do
         throwErrnoIfMinus1Retry_ loc (lstat s p)
         f p
 
-modificationTime :: Ptr CStat -> IO ClockTime
+modificationTime :: Ptr CStat -> IO UTCTime
 modificationTime stat = do
     mtime <- st_mtime stat
     let dbl_time :: Double

directory.cabal

@@ -33,7 +33,7 @@ Library {
     if impl(ghc >= 7.1)
         extensions: NondecreasingIndentation
     build-depends: base >= 4.2 && < 4.5,
-                   old-time >= 1.0 && < 1.1,
+                   time < 1.5,
                    filepath >= 1.1 && < 1.3
     if !impl(nhc98) {
       if os(windows) {