com.mysql.cj.exceptions.InvalidConnectionAttributeException more than one time zone. You must configure either the server or JD value if you want to utilize time zone support.
snippet in sql

com.mysql.cj.exceptions.InvalidConnectionAttributeException more than one time zone. You must configure either the server or JD value if you want to utilize time zone support.

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spring.datasource.url=jdbc:mysql://localhost/db_name?useTimezone=true&serverTimezone=UTC