Disable all automated tasks during peek hours

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Is your feature request related to a problem? Please describe.

• Some internet providers set download limits during peek hours.
• It would be nice if bandwidth was only used when nothing and nobody else is using the internet. Not everyone has a fast internet connection.

Describe the solution you'd like

• Disable downloading any media during a specified time period (except if manually forced).
• Add more options to the scheduler e.g. run daily / weekly / monthly at a specified time.

Describe alternatives you've considered

• Create a cronjob to start and stop the docker container daily. (not very user friendly)
• Disconnect the docker container from the internet daily. (seems to be the only reliable solution)
• Create a user script to cancel all downloads individually, depending on the current time. This doesn't disable indexing though and is this really a good idea?
• Send automated http requests to the web server to disable and reenable every source every day. (terrible)
• Fiddle with the database daily. (terrible)
• Only create new tasks in the middle of the night, hoping they will continue to run only at night which they probably won't.