No matter where you are in the Calendar application, you can easily switch calendar views.
Tap the date in the upper left corner of the screen to display a drop–down menu of calendar views. Tap Day, Week, Month, or Agenda.
Each view displays the events in your calendar for the period of time specified.
Tap the Week tab, the Day tab, or the Agenda tab below the calendar.
To view more information about an event in the Agenda, Day, or Week view, tap the event.
To view the events of a day in Month view, tap a day. The event will be displayed below the calendar. Tap the event to view its details.