diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index e1f4862..15db3d5 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -13,6 +13,10 @@
         </testsuite>
     </testsuites>
 
+    <php>
+        <ini name="date.timezone" value="America/New_York"/>
+    </php>
+
     <source>
         <include>
             <directory>./lib</directory>