Revert "Generated code using date format"

This reverts commit 3aaceec.

Author: frincon

kubernetes/lib/Kubernetes/OpenAPI/Core.hs

@@ -434,16 +434,16 @@ instance P.Show DateTime where
 instance MimeRender MimeMultipartFormData DateTime where
   mimeRender _ = mimeRenderDefaultMultipartFormData
 
--- | @TI.parseTimeM True TI.defaultTimeLocale "%FT%T%6QZ"@
-_readDateTime :: (TI.ParseTime t, Monad m, ) => String -> m t
+-- | @_parseISO8601@
+_readDateTime :: (TI.ParseTime t, Monad m, Alternative m) => String -> m t
 _readDateTime =
-  TI.parseTimeM True TI.defaultTimeLocale "%FT%T%6QZ"
+  _parseISO8601
 {-# INLINE _readDateTime #-}
 
--- | @TI.formatTime TI.defaultTimeLocale "%FT%T%6QZ"@
-_showDateTime :: (TI.FormatTime t) => t -> String
+-- | @TI.formatISO8601Micros@
+_showDateTime :: (t ~ TI.UTCTime, TI.FormatTime t) => t -> String
 _showDateTime =
-  TI.formatTime TI.defaultTimeLocale "%FT%T%6QZ"
+  TI.formatISO8601Micros
 {-# INLINE _showDateTime #-}
 
 -- | parse an ISO8601 date-time string