diff --git a/modules/oe_theme_content_event/oe_theme_content_event.post_update.php b/modules/oe_theme_content_event/oe_theme_content_event.post_update.php
index e5e936844..450c82a76 100644
--- a/modules/oe_theme_content_event/oe_theme_content_event.post_update.php
+++ b/modules/oe_theme_content_event/oe_theme_content_event.post_update.php
@@ -151,6 +151,11 @@ function oe_theme_content_event_post_update_30004(): void {
   ];
   foreach ($date_formats as $date_format_name) {
     $config = $storage->read($date_format_name);
+    $date_format = DateFormat::load($config['id']);
+    // If the date format already exists, we skip it.
+    if ($date_format) {
+      continue;
+    }
     $config['_core']['default_config_hash'] = Crypt::hashBase64(serialize($config));
     $date_format = DateFormat::create($config);
     $date_format->save();
diff --git a/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/InfoDisclosureExtraFieldBase.php b/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/InfoDisclosureExtraFieldBase.php
index b1e3005a8..c81d87642 100644
--- a/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/InfoDisclosureExtraFieldBase.php
+++ b/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/InfoDisclosureExtraFieldBase.php
@@ -65,13 +65,15 @@ public static function create(ContainerInterface $container, array $configuratio
    *
    * @param int $timestamp
    *   The timestamp of start date.
+   * @param string|null $timezone
+   *   The timezone id.
    *
    * @return bool
    *   True if timestamp is within current day.
    */
-  protected function isCurrentDay(int $timestamp): bool {
-    $current_date = $this->dateFormatter->format($this->requestDateTime->getTimestamp(), 'custom', 'Ymd');
-    $start_day = $this->dateFormatter->format($timestamp, 'custom', 'Ymd');
+  protected function isCurrentDay(int $timestamp, string $timezone = NULL): bool {
+    $current_date = $this->dateFormatter->format($this->requestDateTime->getTimestamp(), 'custom', 'Ymd', $timezone);
+    $start_day = $this->dateFormatter->format($timestamp, 'custom', 'Ymd', $timezone);
     return $current_date === $start_day;
   }
 
diff --git a/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/LivestreamExtraField.php b/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/LivestreamExtraField.php
index ce4d24b9c..942a93a40 100644
--- a/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/LivestreamExtraField.php
+++ b/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/LivestreamExtraField.php
@@ -55,7 +55,7 @@ public function viewElements(ContentEntityInterface $entity) {
     // render the date only.
     if ($event->isOnlinePeriodYetToCome($this->requestDateTime)) {
       $this->applyHourTag($build, $event->getOnlineStartDate());
-      if ($this->isCurrentDay($event->getOnlineStartDate()->getTimestamp())) {
+      if ($this->isCurrentDay($event->getOnlineStartDate()->getTimestamp(), $event->getOnlineTimezone())) {
         $build += $link;
         $build['#hide_link'] = TRUE;
         $this->attachDisclosureScript($build, $event->getOnlineStartDate()->getTimestamp());
diff --git a/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/OnlineDescriptionExtraField.php b/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/OnlineDescriptionExtraField.php
index aab91e0cc..160dba47c 100644
--- a/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/OnlineDescriptionExtraField.php
+++ b/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/OnlineDescriptionExtraField.php
@@ -45,7 +45,7 @@ public function viewElements(ContentEntityInterface $entity) {
       $this->applyHourTag($build, $event->getOnlineStartDate());
       // Do not send field value to browser if it is not yet day online
       // livestreaming should be started.
-      if (!$this->isCurrentDay($event->getOnlineStartDate()->getTimestamp())) {
+      if (!$this->isCurrentDay($event->getOnlineStartDate()->getTimestamp(), $event->getOnlineTimezone())) {
         $this->isEmpty = TRUE;
         return $build;
       }
diff --git a/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/RegistrationButtonExtraField.php b/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/RegistrationButtonExtraField.php
index a97e3d924..a167f286e 100644
--- a/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/RegistrationButtonExtraField.php
+++ b/modules/oe_theme_content_event/src/Plugin/ExtraField/Display/RegistrationButtonExtraField.php
@@ -73,7 +73,7 @@ public function viewElements(ContentEntityInterface $entity) {
 
       // If the request time is on the same day as the start day we need to
       // show different message.
-      if ($this->isCurrentDay($datetime_start->getTimestamp())) {
+      if ($this->isCurrentDay($datetime_start->getTimestamp(), $event->getRegistrationTimezone())) {
         $build['#registration_day_description'] = $this->t('Registration will open today, @start_date.', [
           '@start_date' => $this->dateFormatter->format($datetime_start->getTimestamp(), 'oe_event_date_hour_timezone', '', $event->getRegistrationTimezone()),
         ]);
@@ -103,7 +103,7 @@ public function viewElements(ContentEntityInterface $entity) {
     if ($event->hasRegistrationDates()) {
       // If the request time is on the same day as the end day we need to
       // show different message.
-      if ($this->isCurrentDay($datetime_end->getTimestamp())) {
+      if ($this->isCurrentDay($datetime_end->getTimestamp(), $event->getRegistrationTimezone())) {
         $build['#description'] = $this->t('Book your seat, the registration will end today, @end_date', [
           '@end_date' => $this->dateFormatter->format($datetime_end->getTimestamp(), 'oe_event_date_hour_timezone', '', $event->getRegistrationTimezone()),
         ]);
diff --git a/modules/oe_theme_content_event/tests/src/FunctionalJavascript/InfoDisclosureExtraFieldTest.php b/modules/oe_theme_content_event/tests/src/FunctionalJavascript/InfoDisclosureExtraFieldTest.php
index f835b4a3a..6e9f3b6e5 100644
--- a/modules/oe_theme_content_event/tests/src/FunctionalJavascript/InfoDisclosureExtraFieldTest.php
+++ b/modules/oe_theme_content_event/tests/src/FunctionalJavascript/InfoDisclosureExtraFieldTest.php
@@ -127,10 +127,12 @@ public function testTimeSensitiveFieldsDisplay(): void {
     $node->set('oe_event_online_dates', [
       'value' => $start_date->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
       'end_value' => (clone $start_date)->modify('+3 hours')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
+      'timezone' => 'Europe/Brussels',
     ]);
     $node->set('oe_event_registration_dates', [
       'value' => $start_date->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
       'end_value' => (clone $start_date)->modify('+3 hours')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
+      'timezone' => 'Europe/Brussels',
     ]);
     $node->save();
     $this->drupalGet($node->toUrl());
@@ -159,10 +161,12 @@ public function testTimeSensitiveFieldsDisplay(): void {
     $node->set('oe_event_online_dates', [
       'value' => $start_date->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
       'end_value' => (clone $start_date)->modify('+3 hours')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
+      'timezone' => 'Europe/Brussels',
     ]);
     $node->set('oe_event_registration_dates', [
       'value' => $start_date->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
       'end_value' => (clone $start_date)->modify('+3 hours')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
+      'timezone' => 'Europe/Brussels',
     ]);
     $node->save();
     $this->drupalGet($node->toUrl());
@@ -203,10 +207,12 @@ public function testTimeSensitiveFieldsDisplay(): void {
     $node->set('oe_event_online_dates', [
       'value' => (clone $static_time)->modify('-1 hour')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
       'end_value' => (clone $static_time)->modify('+3 hours')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
+      'timezone' => 'Europe/Brussels',
     ]);
     $node->set('oe_event_registration_dates', [
       'value' => (clone $static_time)->modify('-1 hour')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
       'end_value' => (clone $static_time)->modify('+3 hours')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
+      'timezone' => 'Europe/Brussels',
     ]);
     $node->save();
     $this->drupalGet($node->toUrl());
@@ -230,10 +236,12 @@ public function testTimeSensitiveFieldsDisplay(): void {
     $node->set('oe_event_online_dates', [
       'value' => (clone $static_time)->modify('-4 hours')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
       'end_value' => (clone $static_time)->modify('-1 hour')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
+      'timezone' => 'Europe/Brussels',
     ]);
     $node->set('oe_event_registration_dates', [
       'value' => (clone $static_time)->modify('-4 hours')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
       'end_value' => (clone $static_time)->modify('-1 hour')->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
+      'timezone' => 'Europe/Brussels',
     ]);
     $node->save();
     $this->drupalGet($node->toUrl());
diff --git a/tests/src/Functional/ContentEventRenderTest.php b/tests/src/Functional/ContentEventRenderTest.php
index d00448918..44a7c5692 100644
--- a/tests/src/Functional/ContentEventRenderTest.php
+++ b/tests/src/Functional/ContentEventRenderTest.php
@@ -175,7 +175,7 @@ public function testEventFeaturedMediaTranslation(): void {
    */
   public function testEventRendering(): void {
     // Freeze the time at a specific point.
-    $static_time = new DrupalDateTime('2020-02-17 14:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-02-17 14:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $start_date = (clone $static_time)->modify('+ 10 days');
 
@@ -190,7 +190,7 @@ public function testEventRendering(): void {
       'oe_event_dates' => [
         'value' => $start_date->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
         'end_value' => $start_date->format(DateTimeItemInterface::DATETIME_STORAGE_FORMAT),
-        'timezone' => DateTimeItemInterface::STORAGE_TIMEZONE,
+        'timezone' => 'Europe/Brussels',
       ],
       'oe_event_languages' => [
         ['target_id' => 'http://publications.europa.eu/resource/authority/language/EST'],
@@ -230,7 +230,7 @@ public function testEventRendering(): void {
           'size' => 'm',
         ], [
           'icon' => 'calendar',
-          'text' => '27 February 2020, 14:00 UTC',
+          'text' => '27 February 2020, 15:00 CET',
           'size' => 'm',
         ],
       ],
@@ -247,7 +247,7 @@ public function testEventRendering(): void {
       'items' => [
         [
           'label' => 'When',
-          'body' => 'Thursday 27 February 2020, 14:00 UTC',
+          'body' => 'Thursday 27 February 2020, 15:00 CET',
         ], [
           'label' => 'Languages',
           'body' => 'Estonian, French',
@@ -542,7 +542,7 @@ public function testEventRendering(): void {
 
     // Assert "Registration date" field when registration will start today in
     // one hour.
-    $static_time = new DrupalDateTime('2020-02-18 13:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-02-18 14:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());
@@ -551,7 +551,7 @@ public function testEventRendering(): void {
     $this->assertEquals('Registration will open today, 18 February 2020, 15:00 CET.', $registration_info_content->getText());
 
     // Assert "Registration date" field when registration is in progress.
-    $static_time = new DrupalDateTime('2020-02-20 14:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-02-20 15:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());
@@ -561,7 +561,7 @@ public function testEventRendering(): void {
 
     // Assert "Registration date" field when registration will finish today in
     // one hour.
-    $static_time = new DrupalDateTime('2020-02-21 13:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-02-21 13:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());
@@ -570,7 +570,7 @@ public function testEventRendering(): void {
     $this->assertEquals('Book your seat, the registration will end today, 21 February 2020, 15:00 CET', $registration_info_content->getText());
 
     // Assert "Registration date" field in the past.
-    $static_time = new DrupalDateTime('2020-02-24 13:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-02-24 13:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());
@@ -580,7 +580,7 @@ public function testEventRendering(): void {
 
     // Assert "Report text" and "Summary for report" fields when event is
     // finished.
-    $static_time = new DrupalDateTime('2020-04-15 13:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-04-15 13:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());
@@ -1005,21 +1005,21 @@ public function testEventRendering(): void {
     $this->assertEmpty($status_container->find('css', 'div.ecl-message__content div.ecl-message__title'));
 
     // Event is ongoing, but livestream is not.
-    $static_time = new DrupalDateTime('2020-04-17 14:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-04-17 14:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());
     $this->assertStringContainsString('This event has started. The livestream will start at 18 April 2020, 23:00 AEST.', $status_container->find('css', 'div.ecl-message__content div.ecl-message__title')->getText());
 
     // Event is ongoing and livestream also.
-    $static_time = new DrupalDateTime('2020-04-18 20:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-04-18 20:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());
     $this->assertStringContainsString('This event has started. You can also watch it via livestream.', $status_container->find('css', 'div.ecl-message__content div.ecl-message__title')->getText());
 
     // Event is ongoing but livestream is finished.
-    $static_time = new DrupalDateTime('2020-04-20 22:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-04-20 22:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());
@@ -1062,7 +1062,7 @@ public function testEventRendering(): void {
     $this->assertSession()->elementTextNotContains('css', 'div.ecl-message__content div.ecl-message__description', 'Event status message.');
 
     // Set current time after the event ends.
-    $static_time = new DrupalDateTime('2020-05-15 13:00:00', DateTimeItemInterface::STORAGE_TIMEZONE);
+    $static_time = new DrupalDateTime('2020-05-15 13:00:00', 'Europe/Brussels');
     $this->freezeTime($static_time);
     $this->cronRun();
     $this->drupalGet($node->toUrl());