This functionality can be achieved with a few lines of code. Here is what I used to filter them by month:
DateTime date1 = new DateTime(2013, 10, 21);
EventsManager librariesManager = EventsManager.GetManager();
return librariesManager.GetEvents().Where(i => i.EventStart > date1 && i.Status == ContentLifecycleStatus.Live).ToList();
Additionally, you can add tags to events in order to filter them from the events widget. For example adding a October tag to events that will take place in October allows you to show only those in the front end.
Ivan D. Dimitrov
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