In Calendar, you can view your calendar by day, week, month, year or even as a list of events. You can also set the default view for your calendar.
Select the Calendar tool from the Tool Menu in your site.
The item details will display.
Note: When viewing the calendar in list format, you also have the option to select a custom date range and filter events by start/end dates.
If you have a preferred view (e.g., weekly view), click the Set as Default View button while viewing the calendar in your preferred view.