src/java.base/share/classes/sun/util/resources/TimeZoneNames.java

@@ -430,11 +430,11 @@
             {"America/Cordoba", AGT},
             {"America/Costa_Rica", CST},
             {"America/Cuiaba", AMT},
             {"America/Curacao", AST},
             {"America/Danmarkshavn", GMT},
-            {"America/Dawson", PST},
+            {"America/Dawson", MST},
             {"America/Dawson_Creek", MST},
             {"America/Detroit", EST},
             {"America/Dominica", AST},
             {"America/Edmonton", MST},
             {"America/Eirunepe", ACT},

@@ -445,10 +445,13 @@
             {"America/Fortaleza", BRT},
             {"America/Glace_Bay", AST},
             {"America/Godthab", new String[] {"Western Greenland Time", "WGT",
                                               "Western Greenland Summer Time", "WGST",
                                               "Western Greenland Time", "WGT"}},
+            {"America/Nuuk", new String[] {"Nuuk Standard Time", "WGT",
+                                           "Nuuk Summer Time", "WGST",
+                                           "Nuuk Standard Time", "WGT"}},
             {"America/Goose_Bay", AST},
             {"America/Grand_Turk", EST},
             {"America/Grenada", AST},
             {"America/Guadeloupe", AST},
             {"America/Guatemala", CST},

@@ -554,11 +557,11 @@
             {"America/Tijuana", PST},
             {"America/Toronto", EST},
             {"America/Tortola", AST},
             {"America/Vancouver", PST},
             {"America/Virgin", AST},
-            {"America/Whitehorse", PST},
+            {"America/Whitehorse", MST},
             {"America/Winnipeg", CST},
             {"America/Yakutat", AKST},
             {"America/Yellowknife", MST},
             {"Antarctica/Casey", WST_AUS},
             {"Antarctica/Davis", new String[] {"Davis Time", "DAVT",

@@ -796,11 +799,11 @@
             {"Canada/Central", CST},
             {"Canada/Eastern", EST},
             {"Canada/Mountain", MST},
             {"Canada/Newfoundland", NST},
             {"Canada/Pacific", PST},
-            {"Canada/Yukon", PST},
+            {"Canada/Yukon", MST},
             {"Canada/Saskatchewan", CST},
             {"CAT", CAT},
             {"CET", CET},
             {"Chile/Continental", CLT},
             {"Chile/EasterIsland", EASTER},