[google-cloud-sql-discuss] couldn't connect to INSTANCE : x509: certificate has expired or is not yet valid

Hi, I have been struggling with this error for past several hours. Any help would be appreciated.

Running on Lubuntu VM.

gcloud is installed, authenticated, lists the project, gives description of database. starts listening

q@q-VirtualBox:~/Desktop/q$ ./cloud_sql_proxy -instances="q:a:q2"=tcp:3306

2018/03/10 07:05:20 Listening on 127.0.0.1:3306 for q:a:q2

2018/03/10 07:05:20 Ready for new connections

2018/03/10 07:05:30 New connection for "q:a:q2"

2018/03/10 07:05:37 couldn't connect to "q:a:q2": x509: certificate has expired or is not yet valid

Please help

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