The server time zone value 'CEST' is unrecognized

Question

I am using hibernate (Hibernate Maven 5.2.15.Final, Mysql-connector Maven 8.0.9-rc) whith mysql 5.7 on lampp environment on linux so.

I am in Italy (Central European Summer Time) and once March 25, occurs follow error on connection db:

The server time zone value 'CEST' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

On mysql console, I ran:

SHOW GLOBAL VARIABLES LIKE 'time_zone'; SET GLOBAL time_zone='Europe/Rome';  

but that did not persist.

Then I added to my.cnf file (in /etc/mysql):

[mysqld]  default-time-zone = 'Europe/Rome'  

and also:

default_time_zone = 'Europe/Rome'  

but the db server did not start still...

Why does the error occur? Could someone help me?

Thank you!

Answer 1

@aiman's answer is not correct since in your case the effective server timezone is not UTC.

You'll find on the net some solutions including additional parameters on the jdbc connection string, but there are cases where you cannot change this string.

Here's how I fixed it:

First import the system timezones in mysql:

$ mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql 

Then set your default mysql server timezone in the [mysqld] section of /etc/mysql/my.cnf (or of /etc/mysql/mysql.conf.d/mysqld.cnf on recent Debian/Ubuntu distros) to your actual server timezone, for instance:

default_time_zone = Europe/Paris 

and don't forget to restart mysql

$ sudo service mysql restart 

(or the appropriate command depending on your distro).

Answer 2

First see your mysql server timezone:
mysql -e "SELECT @@global.time_zone;" -u <mysqluser> -p.
Most probably it should be SYSTEM.
Find your system timezone: date +”%Z.
See if its CEST.
You need to change your system timezone:

#cd /usr/share/zoneinfo #ls -l #rm /etc/localtime #ln -s /usr/share/zoneinfo/UTC /etc/localtime 

Then restart your mysql server: /etc/init.d/mysqld restart.

Enjoy