Setting the Day or Time for Automatic Folder Creation
2 Select a day for the [Auto Create] option and a time in the [Time] option 
MENU button.
z 
displays in the LCD monitor (or viewfinder) when the specified time arrives. The symbol will cease to display after the new folder is created.
Up to 2000 images can be saved into one folder. A new folder will automatically be created when you record more than that number even if you are not creating new folders.
Functions Shooting Advanced
101