In MariaDB, LOCALTIMESTAMP and LOCALTIMESTAMP() are synonyms for NOW().
The NOW() function is a built-in date and time function that returns the current date and time.
The time is returned in either 'YYYY-MM-DD HH:MM:SS' or YYYYMMDDHHMMSS.uuuuuu format, depending on whether the function is being used in a string or numeric context.