In Calendar, you can view your calendar by day, week, month, or year. 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. monthly view), click the Set as Default View button while viewing the calendar in your preferred view.