diff -r 91a2ec8e7fa0 -r 0ed730f3301c mercurial/ui.py
--- a/mercurial/ui.py	Fri Apr 28 00:01:22 2017 +0900
+++ b/mercurial/ui.py	Tue May 23 15:44:50 2017 +0200
@@ -607,7 +607,7 @@
         (0, 0)
         """
         if self.config(section, name, default, untrusted):
-            return self.configwith(util.parsedate, section, name, default,
+            return self.configwith(util.rawparsedate, section, name, default,
                                    'date', untrusted)
         return default