diff --git a/htdocs/admin/system/dolibarr.php b/htdocs/admin/system/dolibarr.php
index 80454403a32..1100b86f412 100644
--- a/htdocs/admin/system/dolibarr.php
+++ b/htdocs/admin/system/dolibarr.php
@@ -224,7 +224,7 @@ if (($thousand != ',' && $thousand != '.') || ($thousand != ' '))
 print '<tr class="oddeven"><td>&nbsp; => price(1234.56)</td><td>'.price(1234.56).'</td></tr>'."\n";
 // Timezone
 $txt = $langs->trans("OSTZ").' (variable system TZ): '.(!empty($_ENV["TZ"]) ? $_ENV["TZ"] : $langs->trans("NotDefined")).'<br>'."\n";
-$txt .= $langs->trans("PHPTZ").' (php.ini date.timezone): '.(ini_get("date.timezone") ?ini_get("date.timezone") : $langs->trans("NotDefined")).''."<br>\n"; // date.timezone must be in valued defined in http://fr3.php.net/manual/en/timezones.europe.php
+$txt .= $langs->trans("PHPTZ").' (date_default_timezone_get() / php.ini date.timezone): '.(getServerTimeZoneString()." / ".(ini_get("date.timezone") ? ini_get("date.timezone") : $langs->trans("NotDefined")))."<br>\n"; // date.timezone must be in valued defined in http://fr3.php.net/manual/en/timezones.europe.php
 $txt .= $langs->trans("Dolibarr constant MAIN_SERVER_TZ").': '.(empty($conf->global->MAIN_SERVER_TZ) ? $langs->trans("NotDefined") : $conf->global->MAIN_SERVER_TZ);
 print '<tr class="oddeven"><td>'.$langs->trans("CurrentTimeZone").'</td><td>'; // Timezone server PHP
 $a = getServerTimeZoneInt('now');