From 2cfb20c2d0b398f85921a865c97d0c8f12ef9d76 Mon Sep 17 00:00:00 2001
From: Alex Lau <alau@windows95.local>
Date: Fri, 1 Apr 2016 18:31:28 -0700
Subject: [PATCH] Only set timezone for valid dates in constructor

---
 index.js | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/index.js b/index.js
index 088efe3..188497e 100644
--- a/index.js
+++ b/index.js
@@ -578,12 +578,14 @@ function Date (year, month, day, hour, minute, second, millisecond, timezone) {
     case 7:
       d = new _Date(year, month, day, hour, minute, second, millisecond); break;
   }
-  if (timezone) {
-    // set time given timezone relative to the currently set local time
-    // (changing the internal "time" milliseconds value unless ms specified)
-    d.setTimezone(timezone, !(argc == 1 && typeof year === 'number'));
-  } else {
-    d.setTimezone(exports.currentTimezone);
+  if (!isNaN(d)) {
+    if (timezone) {
+      // set time given timezone relative to the currently set local time
+      // (changing the internal "time" milliseconds value unless ms specified)
+      d.setTimezone(timezone, !(argc == 1 && typeof year === 'number'));
+    } else {
+      d.setTimezone(exports.currentTimezone);
+    }
   }
   return d;
 }