Can the default date range on the Events page be changed?

Hi S_OKeefe,

the default date range for the "See All" button in the Modern Event Webpart on SharePoint Online is set to display events for one month from the current date.

Unfortunately, there isn't a built-in setting to change this default behavior, which means that users can only manually adjust the date range each time if they want to view events beyond the one-month period (See all > From - To).

I suggest you send a feedback to Microsoft Feedback Portal (SharePoint · Community (microsoft.com)), this is the best method to let the related team know about your feature request.