Scope = weekend?

Go to the help page and look at the Custom Date/Time Formatting section. That may be what you are looking for. Says it uses PHP date syntax format characters along with placeholders so its just a matter of finding the right combination for you?

These may help:
https://www.php.net/manual/en/function.date.php
https://php.net/manual/en/datetime.formats.relative.php

You’d need to create a custom scope to do that:
https://wp-events-plugin.com/tutorials/create-your-own-event-scope/