--- old/src/jdk.localedata/share/classes/sun/util/resources/ext/TimeZoneNames_it.java	2018-03-30 04:37:31.820667475 -0700
+++ new/src/jdk.localedata/share/classes/sun/util/resources/ext/TimeZoneNames_it.java	2018-03-30 04:37:31.620667475 -0700
@@ -446,7 +446,7 @@
                                               "Ora estiva della Groenlandia occidentale", "WGST",
                                               "Ora della Groenlandia occidentale", "WGT"}},
             {"America/Goose_Bay", AST},
-            {"America/Grand_Turk", AST},
+            {"America/Grand_Turk", EST},
             {"America/Grenada", AST},
             {"America/Guadeloupe", AST},
             {"America/Guatemala", CST},