Issue #3023795 by heddn: Timezone adjustments are not accounted for in ReportDateField.

src/Plugin/views/field/ReportDateField.php

@@ -118,9 +118,13 @@ class ReportDateField extends EntityField {
     $this->add_field_table($use_groupby);
     $this->ensureMyTable();
 
-    // Add the field.
+    // Add the field with timezone offset.
     $params = $this->options['group_type'] !== 'group' ? ['function' => $this->options['group_type']] : [];
-    $expression = $this->query->getDateFormat("FROM_UNIXTIME($this->tableAlias.$this->realField)", $this->dateFormatString);
+    $offset = '';
+    $this->query->setFieldTimezoneOffset($offset, $this->query->getTimezoneOffset());
+    $offset = trim($offset, '()');
+    $expression = $this->query->getDateFormat("FROM_UNIXTIME($this->tableAlias.$this->realField) $offset", $this->dateFormatString);
+
     $this->field_alias = $this->query->addField(NULL, $expression, "{$this->tableAlias}_{$this->realField}", $params);
     $this->query->addGroupBy($this->field_alias);
     $this->aliases[$this->definition['field_name']] = $this->field_alias;