diff --git a/application/config/migration.php b/application/config/migration.php
index 67f170a7..78e384e4 100755
--- a/application/config/migration.php
+++ b/application/config/migration.php
@@ -37,7 +37,7 @@ $config['migration_table'] = 'ea_migrations';
 | be upgraded / downgraded to.
 |
 */
-$config['migration_version'] = 17; // current
+$config['migration_version'] = 18; // current
 
 
 /*
diff --git a/application/migrations/018_add_timezone_columns.php b/application/migrations/018_add_timezone_columns.php
new file mode 100644
index 00000000..d02d1a39
--- /dev/null
+++ b/application/migrations/018_add_timezone_columns.php
@@ -0,0 +1,40 @@
+<?php defined('BASEPATH') OR exit('No direct script access allowed');
+
+/* ----------------------------------------------------------------------------
+ * Easy!Appointments - Open Source Web Scheduler
+ *
+ * @package     EasyAppointments
+ * @author      A.Tselegidis <alextselegidis@gmail.com>
+ * @copyright   Copyright (c) 2013 - 2020, Alex Tselegidis
+ * @license     http://opensource.org/licenses/GPL-3.0 - GPLv3
+ * @link        http://easyappointments.org
+ * @since       v1.4.0
+ * ---------------------------------------------------------------------------- */
+
+class Migration_Add_add_timezone_columns extends CI_Migration {
+    public function up()
+    {
+        $this->db->query('
+            ALTER TABLE `ea_appointments`
+                ADD `timezone` VARCHAR(256) NULL AFTER `end_datetime`;
+        ');
+
+        $this->db->query('
+            ALTER TABLE `ea_users`
+                ADD `timezone` VARCHAR(256) NULL AFTER `notes`;
+        ');
+    }
+
+    public function down()
+    {
+        $this->db->query('
+            ALTER TABLE `ea_appointments`
+                DROP COLUMN `timezone`;
+        ');
+
+        $this->db->query('
+            ALTER TABLE `ea_users`
+                DROP COLUMN `timezone`;
+        ');
+    }
+}
diff --git a/assets/sql/data.sql b/assets/sql/data.sql
index 02d109cc..1fcb2f11 100644
--- a/assets/sql/data.sql
+++ b/assets/sql/data.sql
@@ -27,4 +27,4 @@ VALUES
     ('require_phone_number', '1'),
     ('api_token', '');
 
-INSERT INTO `ea_migrations` VALUES ('16');
+INSERT INTO `ea_migrations` VALUES ('18');
diff --git a/assets/sql/structure.sql b/assets/sql/structure.sql
index 567f4a1f..c65b30df 100755
--- a/assets/sql/structure.sql
+++ b/assets/sql/structure.sql
@@ -6,6 +6,7 @@ CREATE TABLE IF NOT EXISTS `ea_appointments` (
     `book_datetime` DATETIME,
     `start_datetime` DATETIME,
     `end_datetime` DATETIME,
+    `timezone` VARCHAR(256),
     `location` TEXT,
     `notes` TEXT,
     `hash` TEXT,
@@ -24,9 +25,9 @@ CREATE TABLE IF NOT EXISTS `ea_appointments` (
 
 CREATE TABLE IF NOT EXISTS `ea_consents` (
     `id` INT(11) NOT NULL AUTO_INCREMENT,
-    `modified` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP 
-    ON UPDATE CURRENT_TIMESTAMP,
     `created` TIMESTAMP,
+    `modified` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+    ON UPDATE CURRENT_TIMESTAMP,
     `first_name` VARCHAR(256),
     `last_name` VARCHAR(256),
     `email` VARCHAR(512),
@@ -131,6 +132,7 @@ CREATE TABLE IF NOT EXISTS `ea_users` (
     `state` VARCHAR(128),
     `zip_code` VARCHAR(64),
     `notes` TEXT,
+    `timezone` VARCHAR(256),
     `id_roles` INT(11) NOT NULL,
     PRIMARY KEY (`id`),
     KEY `id_roles` (`id_roles`)