day of week

[aiv1]

I have a daily time series with data from Monday to Friday. When I train an HNITS or N-BEATS model where the last observed day is Friday, will the model's predictions start from the following Monday, or will they begin from Saturday?
How can I configure the model to generate predictions only for weekdays? Similarly, for hourly data, how can I ensure predictions are made exclusively between 9:00 AM and 6:00 PM?