The Calendar feature is another way to look at the photo Library. With Calendar, you can browse the entire Library from a time perspective.

Photos are grouped by days, months, and years and projected on a regular calendar grid.
There are three zoom levels in Calendar: days, months, and years.
Every Calendar cell contains photos of a specific time frame, depending on the selected zoom level.
Click a year’s header to zoom in and see all the months of a year.
Click a month’s header to zoom in and see all the days of that month.
Scroll back and forth in time using the arrow buttons.
Double-click on a cell to get all its photos loaded into the thumbnails area.