Replace GMT with UTC (joomla#43912)

Author: laoneo

administrator/components/com_actionlogs/src/Model/ActionlogsModel.php

@@ -210,7 +210,7 @@ private function buildDateRange($range)
                 $dStart->setTime(0, 0, 0);
 
                 // Now change the timezone back to UTC.
-                $tz = new \DateTimeZone('GMT');
+                $tz = new \DateTimeZone('UTC');
                 $dStart->setTimezone($tz);
                 break;
         }

administrator/components/com_scheduler/src/Model/TaskModel.php

@@ -612,7 +612,7 @@ public function save($data): bool
             $basisDayOfMonth           = $data['execution_rules']['exec-day'];
             [$basisHour, $basisMinute] = explode(':', $data['execution_rules']['exec-time']);
 
-            $data['last_execution'] = Factory::getDate('now', 'GMT')->format('Y-m')
+            $data['last_execution'] = Factory::getDate('now', 'UTC')->format('Y-m')
                 . "-$basisDayOfMonth $basisHour:$basisMinute:00";
         } else {
             $data['last_execution'] = $this->getItem($id)->last_execution;

administrator/components/com_scheduler/src/Model/TasksModel.php

@@ -251,7 +251,7 @@ static function (TaskOption $taskOption): string {
         $due = $this->getState('filter.due');
 
         if (is_numeric($due) && $due != 0) {
-            $now      = Factory::getDate('now', 'GMT')->toSql();
+            $now      = Factory::getDate('now', 'UTC')->toSql();
             $operator = $due == 1 ? ' <= ' : ' > ';
             $filterCount++;
             $query->where($db->quoteName('a.next_execution') . $operator . ':now')
@@ -268,7 +268,7 @@ static function (TaskOption $taskOption): string {
         $locked = $this->getState('filter.locked');
 
         if (is_numeric($locked) && $locked != 0) {
-            $now              = Factory::getDate('now', 'GMT');
+            $now              = Factory::getDate('now', 'UTC');
             $timeout          = ComponentHelper::getParams('com_scheduler')->get('timeout', 300);
             $timeout          = new \DateInterval(\sprintf('PT%dS', $timeout));
             $timeoutThreshold = (clone $now)->sub($timeout)->toSql();

administrator/components/com_scheduler/src/Task/Task.php

@@ -307,7 +307,7 @@ public function acquireLock(): bool
         $db    = $this->db;
         $query = $db->getQuery(true);
         $id    = $this->get('id');
-        $now   = Factory::getDate('now', 'GMT');
+        $now   = Factory::getDate('now', 'UTC');
 
         $timeout          = ComponentHelper::getParams('com_scheduler')->get('timeout', 300);
         $timeout          = new \DateInterval(\sprintf('PT%dS', $timeout));

administrator/components/com_users/src/Model/UsersModel.php

@@ -567,7 +567,7 @@ private function buildDateRange($range)
                 $dStart->setTime(0, 0, 0);
 
                 // Now change the timezone back to UTC.
-                $tz = new \DateTimeZone('GMT');
+                $tz = new \DateTimeZone('UTC');
                 $dStart->setTimezone($tz);
                 break;
             case 'never':

build/bump.php

@@ -162,7 +162,7 @@ function usage($command)
     'build'      => '',
     'reldate'    => $date->format('j-F-Y'),
     'reltime'    => $date->format('H:i'),
-    'reltz'      => 'GMT',
+    'reltz'      => 'UTC',
     'credate'    => $date->format('Y-m'),
 ];
 

libraries/src/Date/Date.php

@@ -100,7 +100,7 @@ public function __construct($date = 'now', $tz = null)
         // Create the base GMT and server time zone objects.
         if (empty(self::$gmt) || empty(self::$stz)) {
             // @TODO: This code block stays here only for B/C, can be removed in 5.0
-            self::$gmt = new \DateTimeZone('GMT');
+            self::$gmt = new \DateTimeZone('UTC');
             self::$stz = new \DateTimeZone(@date_default_timezone_get());
         }
 

libraries/src/User/User.php

@@ -542,7 +542,7 @@ public function setLastVisit($timestamp = null)
      */
     public function getTimezone()
     {
-        $timezone = $this->getParam('timezone', Factory::getApplication()->get('offset', 'GMT'));
+        $timezone = $this->getParam('timezone', Factory::getApplication()->get('offset', 'UTC'));
 
         return new \DateTimeZone($timezone);
     }

libraries/src/Version.php

@@ -107,7 +107,7 @@ final class Version
      * @var    string
      * @since  3.5
      */
-    public const RELTZ = 'GMT';
+    public const RELTZ = 'UTC';
 
     /**
      * Copyright Notice.

plugins/system/webauthn/src/CredentialRepository.php

@@ -622,7 +622,7 @@ private function formatDate($date, ?string $format = null, bool $tzAware = true)
             try {
                 $tzDefault = Factory::getApplication()->get('offset');
             } catch (\Exception $e) {
-                $tzDefault = 'GMT';
+                $tzDefault = 'UTC';
             }
 
             $user = Factory::getContainer()->get(UserFactoryInterface::class)->loadUserById($userId ?? 0);