Add a new notification in the Pushcut app.
Set the name to Evening and enter notification text and title.
Tap Add Action, call it Run evening scene, and select the shortcut that runs your HomeKit scene.
Tap Add Trigger and select Weekly.
Select days and time, and tap Done.
Select the desired notification sound, and tap Save.
Tap Test Notification to see how it will look like.
You did it! You will now get a friendly reminder Monday to Friday to start your evening.
Expand your notification to get access to your Run evening scene action.