The following table has a list of users with the following fields: user_id registration_date name country
To convert the field registration_date in seconds to readable date in MySQL / MariaDB enter the following query
select user_id, FROM_UNIXTIME(registration_date, '%d/%m/%Y %h:%i:%s') as formatted_date, name, country from tbl_users_example ORDER BY registration_date ASC;
The operators to format the date %d = Date %m = Month %Y = Year %h = Hours %i = Minutes %s = Seconds
The date was set in UK Format. For US date format you would enter the following
select user_id, FROM_UNIXTIME(registration_date, '%m/%d/%Y %h:%i:%s') as formatted_date, name, country from tbl_users_example ORDER BY registration_date ASC;