Click on the date then the time (10:00 AM) to make a booking.
The dates that are greyed out indicate that those dates have been booked by somebody for the lunch offering.
Even if a day is booked by someone, you can still bring food to share with the monastery community on that day, please see "Frequently Asked Questions" on [https://www.bsv.net.au/nbm-lunch-dana/](https://www.bsv.net.au/nbm-lunch-dana/?useTarget=_blank).