diff --git a/Source/JavaScriptCore/runtime/JSDateMath.cpp b/Source/JavaScriptCore/runtime/JSDateMath.cpp
index 6e601f1..b695736 100644
--- a/Source/JavaScriptCore/runtime/JSDateMath.cpp
+++ b/Source/JavaScriptCore/runtime/JSDateMath.cpp
@@ -203,7 +203,7 @@
 // input is UTC
 void msToGregorianDateTime(ExecState* exec, double ms, bool outputIsUTC, GregorianDateTime& tm)
 {
-    LocalTimeOffset localTime(false, 0);
+    LocalTimeOffset localTime;
     if (!outputIsUTC) {
         localTime = localTimeOffset(exec, ms);
         ms += localTime.offset;