Issue #13847: time.localtime() and time.gmtime() now raise an OSError instead
of ValueError on failure. time.ctime() and time.asctime() now raises an
OSError if localtime() failed.
diff --git a/Misc/NEWS b/Misc/NEWS
index 70d8095..320e386 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -461,6 +461,10 @@
 Library
 -------
 
+- Issue #13847: time.localtime() and time.gmtime() now raise an OSError instead
+  of ValueError on failure. time.ctime() and time.asctime() now raises an
+  OSError if localtime() failed.
+
 - Issue #13862: Fix spurious failure in test_zlib due to runtime/compile time
   minor versions not matching.