Remember the Day in the Life of America project?  How about a Day in the Life of the World? 

Anyone with a cellphone can contribute all over the world.  And people with real cameras can fan out as well.

I propose 5/5/25.  No confusion between month and date first orders, and 5*5 is 25.

Candid photos encouraged as this is a documentary (with permission of people photographs).  As this is a documentary for conceivably a traveling exhibit and online presence no fiddling with colors and contents using photoshop (but you can crop and stuff).

International contributors welcome :)