This forum allows us - at the moment - to schedule events and give them a topic to discuss them.
When you create a new topic, you can see the event button at the top of the post.
You can click this to give the post a time span as an event.
Once you have posted your topic, the times come up in the title for everyone to see. You can decide if people can RSVP (ReSerVe a Place) or download the ICS file to add it to their calendar.
There is a webpage where you can see all the events of the month:
https://ammanvalley.foss.wales/calendar
Getting the events to your computer/phone
If you like seeing these events in your calendar, you can choose to subscribe to the following link. This might be an Android Phone-, Thunderbird-, Outlook-, Google-calendar or the like.
https://ammanvalley.foss.wales/calendar.ics
Limitations
Currently, for each event, a topic discussion is necessary. We might be able to change this in the future, see Plugins to install - #4 by niccokunzmann.