Why not subscribe to the Intergroup calendar so that new events will be added to your device automatically?
The complete Intergroup diary can be viewed head under the ‘Intergroup’ tab or by clicking here. Instructions on how to subscribe to the calendar on your mobile or computer can be found under the calendar.
If you already use Google Calendar click the ‘+ Google Calendar’ button on the bottom right of the calendar window. To subscribe with other calendar services, check the format compatible with your device and copy and paste the appropriate code into your calendar application.