I was getting a weird timezone error when connecting to a MySQL 8 database.

The server time zone value 'EDT' 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.

I was able to get around this by adding a custom jdbc option to my datasource:

cfconfig datasource save name=test dbdriver=mysql host=localhost port=3306 database=testdb username=randy password=test custom="serverTimezone=America/New_York"