risolto nella configurazione della connessione:

codice:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPEconfigurationPUBLIC"-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

    <typeAliases>
        <typeAlias type="com.b2b.rest.Cliente" alias="Cliente"></typeAlias>
    </typeAliases>

    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.cj.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/cronos3?serverTimezone=UTC"/>
                <property name="username" value=""/>
                <property name="password" value=""/>
            </dataSource>
        </environment>
    </environments>

    <mappers>
        <mapper resource="ClienteMapper.xml"/>
    </mappers>

</configuration>

aggiungendo serverTimezone.