diff --git a/src/www/status_dhcpv6_leases.php b/src/www/status_dhcpv6_leases.php
index 6ca37ea07..3e030266b 100644
--- a/src/www/status_dhcpv6_leases.php
+++ b/src/www/status_dhcpv6_leases.php
@@ -50,11 +50,11 @@ function adjust_gmt($dt)
 
     $timezone = $config['system']['timezone'];
     $ts = strtotime($dt . " GMT");
-    if ($dhcpv6leaseinlocaltime == "yes") {
+    if ($dhcpv6leaseinlocaltime != "yes") {
         $this_tz = new DateTimeZone($timezone);
         $dhcp_lt = new DateTime(strftime("%I:%M:%S%p", $ts), $this_tz);
         $offset = $this_tz->getOffset($dhcp_lt);
-        $ts = $ts + $offset;
+        $ts = $ts - $offset;
         return strftime("%Y/%m/%d %I:%M:%S%p", $ts);
     } else {
         return strftime("%Y/%m/%d %H:%M:%S", $ts);