How To: Shutdown A VM Instance Using Cloud Scheduler
Intro
Cloud Scheduler is a paid CRON service which can be used, among many other things, to automatically shutdown a GCP VM instance.
Useful Documentation And Guides
Steps
Find the service by selecting the hamburger icon and clicking Cloud Scheduler under the Tools section
Create the job (or read docs if interested in learning more)
Follow the wizard
, multiple selections available, Use left or right arrow keys to navigate selected items