my coworker/super awesome illustrator Ryan Casey pinged me a link to monsterchildren.com for this:
Call for Entries / We're looking for anyone to be apart of our Photo Issue. We want you to take a photo at exactly 3pm on Saturday the 25th April. It can be of anything, anywhere around the world. Where ever you are at that time. Then email the photo (as a jpeg, under 4mb) to email@example.com with the following info: Name, Location, 50 words or less explaining the photo and your own website. Easy.