diff --git a/wp-includes/locale.php b/wp-includes/locale.php
new file mode 100644
index 0000000000..379d8797e2
--- /dev/null
+++ b/wp-includes/locale.php
@@ -0,0 +1,26 @@
+<?php
+// Date and Time
+
+// The Weekdays
+$weekday[0] = __('Sunday');
+$weekday[1] = __('Monday');
+$weekday[2] = __('Tuesday');
+$weekday[3] = __('Wednesday');
+$weekday[4] = __('Thursday');
+$weekday[5] = __('Friday');
+$weekday[6] = __('Saturday');
+
+// The Months
+$month['01'] = __('January');
+$month['02'] = __('February');
+$month['03'] = __('March');
+$month['04'] = __('April');
+$month['05'] = __('May');
+$month['06'] = __('June');
+$month['07'] = __('July');
+$month['08'] = __('August');
+$month['09'] = __('September');
+$month['10'] = __('October');
+$month['11'] = __('November');
+$month['12'] = __('December');
+?>
\ No newline at end of file
diff --git a/wp-includes/wp-l10n.php b/wp-includes/wp-l10n.php
index 09f84425a1..e3d689680e 100644
--- a/wp-includes/wp-l10n.php
+++ b/wp-includes/wp-l10n.php
@@ -2,7 +2,7 @@
 $curpath = dirname(__FILE__).'/';
 
 // The locale is hard-coded here for now.
-$locale = 'en_GB';
+$locale = 'en_US';
 
 $mofile = $curpath . "/languages/$locale.mo";
 
@@ -36,4 +36,6 @@ function __ngettext($single, $plural, $number) {
     global $l10n;
     return $l10n->ngettext($single, $plural, $number);
 }
+
+require($curpath . 'locale.php');
 ?>