diff -r 000000000000 -r 6474c204b198 js/src/jsdate.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jsdate.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * JS Date class interface.
+ */
+
+#ifndef jsdate_h
+#define jsdate_h
+
+#include "jstypes.h"
+
+#include "js/RootingAPI.h"
+#include "js/TypeDecls.h"
+
+/*
+ * These functions provide a C interface to the date/time object
+ */
+
+/*
+ * Construct a new Date Object from a time value given in milliseconds UTC
+ * since the epoch.
+ */
+extern JS_FRIEND_API(JSObject *)
+js_NewDateObjectMsec(JSContext* cx, double msec_time);
+
+/*
+ * Construct a new Date Object from an exploded local time value.
+ *
+ * Assert that mon < 12 to help catch off-by-one user errors, which are common
+ * due to the 0-based month numbering copied into JS from Java (java.util.Date
+ * in 1995).
+ */
+extern JS_FRIEND_API(JSObject *)
+js_NewDateObject(JSContext* cx, int year, int mon, int mday,
+                 int hour, int min, int sec);
+
+extern JS_FRIEND_API(int)
+js_DateGetYear(JSContext *cx, JSObject *obj);
+
+extern JS_FRIEND_API(int)
+js_DateGetMonth(JSContext *cx, JSObject *obj);
+
+extern JS_FRIEND_API(int)
+js_DateGetDate(JSContext *cx, JSObject *obj);
+
+extern JS_FRIEND_API(int)
+js_DateGetHours(JSContext *cx, JSObject *obj);
+
+extern JS_FRIEND_API(int)
+js_DateGetMinutes(JSContext *cx, JSObject *obj);
+
+extern JS_FRIEND_API(int)
+js_DateGetSeconds(JSObject *obj);
+
+/* Date constructor native. Exposed only so the JIT can know its address. */
+bool
+js_Date(JSContext *cx, unsigned argc, JS::Value *vp);
+
+#endif /* jsdate_h */