diff --git a/program/lib/Roundcube/rcube_utils.php b/program/lib/Roundcube/rcube_utils.php
index f8b7edf00..f5b80b12c 100644
--- a/program/lib/Roundcube/rcube_utils.php
+++ b/program/lib/Roundcube/rcube_utils.php
@@ -798,7 +798,7 @@ class rcube_utils
         $date = preg_replace(
             array(
                 '/GMT\s*([+-][0-9]+)/',                     // support non-standard "GMTXXXX" literal
-                '/[^a-z0-9\x20\x09:+-\/]/i',                  // remove any invalid characters
+                '/[^a-z0-9\x20\x09:+-\/]/i',                // remove any invalid characters
                 '/\s*(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\s*/i',   // remove weekday names
             ),
             array(
@@ -810,15 +810,15 @@ class rcube_utils
         $date = trim($date);
 
         // try to fix dd/mm vs. mm/dd discrepancy, we can't do more here
-        if (preg_match('/^(\d{1,2})[.\/-](\d{1,2})[.\/-](\d{4})(.*)$/', $date, $m)) {
+        if (preg_match('/^(\d{1,2})[.\/-](\d{1,2})[.\/-](\d{4})(\s.*)?$/', $date, $m)) {
             $mdy   = $m[2] > 12 && $m[1] <= 12;
             $day   = $mdy ? $m[2] : $m[1];
             $month = $mdy ? $m[1] : $m[2];
-            $date  = sprintf('%04d-%02d-%02d%s', intval($m[3]), $month, $day, $m[4] ?: '00:00:00');
+            $date  = sprintf('%04d-%02d-%02d%s', $m[3], $month, $day, $m[4] ?: ' 00:00:00');
         }
         // I've found that YYYY.MM.DD is recognized wrong, so here's a fix
-        else if (preg_match('/^(\d{4})\.(\d{1,2})\.(\d{1,2})(.*)$/', $date)) {
-            $date = str_replace('.', '-', $date) . ($m[4] ?: '00:00:00');
+        else if (preg_match('/^(\d{4})\.(\d{1,2})\.(\d{1,2})(\s.*)?$/', $date, $m)) {
+            $date  = sprintf('%04d-%02d-%02d%s', $m[1], $m[2], $m[3], $m[4] ?: ' 00:00:00');
         }
 
         return $date;
diff --git a/tests/Framework/Utils.php b/tests/Framework/Utils.php
index f0c248aa1..6824f1e51 100644
--- a/tests/Framework/Utils.php
+++ b/tests/Framework/Utils.php
@@ -322,13 +322,24 @@ class Framework_Utils extends PHPUnit_Framework_TestCase
             '20130422'   => '2013-04-22',
             '1900-10-10' => '1900-10-10',
             '01-01-1900' => '1900-01-01',
-            '01/30/1960' => '1960-01-30'
+            '01/30/1960' => '1960-01-30',
+            '1960.12.11 01:02:00' => '1960-12-11',
         );
 
         foreach ($test as $datetime => $ts) {
             $result = rcube_utils::anytodatetime($datetime);
             $this->assertSame($ts, $result ? $result->format('Y-m-d') : false, "Error parsing date: $datetime");
         }
+
+        $test = array(
+            '12/11/2013 01:02:00' => '2013-11-12 01:02:00',
+            '1960.12.11 01:02:00' => '1960-12-11 01:02:00',
+        );
+
+        foreach ($test as $datetime => $ts) {
+            $result = rcube_utils::anytodatetime($datetime);
+            $this->assertSame($ts, $result ? $result->format('Y-m-d H:i:s') : false, "Error parsing date: $datetime");
+        }
     }
 
     /**