A few examples of using the Flickr API flickr.photos.search to find photos taken at a certain date/time and location.

gistfile1.txt

Docs here:

http://www.flickr.com/services/api/flickr.photos.search.htm

Interactive API Explorer for that method here: 

http://www.flickr.com/services/api/explore/flickr.photos.search

Find a place. Like this:

http://www.flickr.com/places/United+States/Louisiana/New+Orleans

Look at the bottom of the page for the WOE ID. You can click on that or just use the WOE ID.

http://www.flickr.com/places/info/2458833

That tells you the bounding box and centroid in lat/lon.

For New Orleans it's 

lat=29.9537
lon=-90.0777

I'll also use

radius=5 // (km) that's the default

I could also directly use the WOE ID.

Using www.epochconverter.com I found the 5 hours surrounding midnight New Year's Eve:

min_taken_date=1356973200
max_taken_date=1356991200

Using flickr.photos.search (this is using the Flickr API Explorer API Key -- substitute in your own):

http://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=6d8c8c064ff4f1f72b1938e574a2e523&min_taken_date=1356973200&max_taken_date=1356991200&lat=29.9537&lon=-90.0777&radius=5&format=rest&auth_token=72157632444036961-bae1f4d7ad01bb49&api_sig=78aec38d16fd3e4a3df36e86e4bd5563

<?xml version="1.0" encoding="utf-8" ?>
<rsp stat="ok">
  <photos page="1" pages="1" perpage="100" total="22">
    <photo id="8334423356" owner="55456476@N06" secret="090eeaed10" server="8358" farm="9" title="till nightfall." ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8330792541" owner="21685341@N00" secret="b39d2eb43e" server="8354" farm="9" title="2013 Desktop Wallpaper Calendar - January" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8334125666" owner="83865436@N07" secret="0d2ff945c7" server="8502" farm="9" title="Broccoli, Kumquat, Pickles, Green Onion Vinaigrette - Maurepas Foods - Bywater - New Orleans, LA" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8333063963" owner="83865436@N07" secret="95e297e0af" server="8076" farm="9" title="Broccoli, Kumquat, Pickles, Green Onion Vinaigrette - Maurepas Foods - Bywater - New Orleans, LA" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8333071319" owner="83865436@N07" secret="1cb838f161" server="8071" farm="9" title="Arugula, Citrus, Chicken Cracklin - Maurepas Foods - Bywater - New Orleans, LA" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8333077859" owner="83865436@N07" secret="fbfa4f25e6" server="8499" farm="9" title="Joe with NYE Guests - Maurepas Foods - Bywater - New Orleans, LA" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8332641566" owner="64957428@N00" secret="cf6478f3b2" server="8352" farm="9" title="Happy New Year!" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8331471974" owner="47503730@N08" secret="b15bc3f10f" server="8216" farm="9" title="Happy New Year   #nola" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8334369291" owner="32544079@N08" secret="48e5934720" server="8222" farm="9" title="IMG_5338" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8334308511" owner="32544079@N08" secret="db5b837f15" server="8351" farm="9" title="IMG_5345" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8334362399" owner="32544079@N08" secret="8f4ce3d782" server="8079" farm="9" title="IMG_5339" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8335376946" owner="32544079@N08" secret="3400a99ce6" server="8491" farm="9" title="IMG_5344" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8334336897" owner="32544079@N08" secret="5e00fd2538" server="8217" farm="9" title="IMG_5343" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8334352327" owner="32544079@N08" secret="3a92a57b8b" server="8358" farm="9" title="IMG_5341" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8331310365" owner="91259460@N06" secret="9f1546f837" server="8215" farm="9" title="Scallop martini, yum!" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8331152403" owner="85450402@N02" secret="daf1a67416" server="8358" farm="9" title="" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8333067563" owner="83865436@N07" secret="5bdc4db2d7" server="8357" farm="9" title="Pork Char Sui, Anchovy & Pork FIsh Sauce, Pickled Japanese Turnips, White Bread - Maurepas Foods - Bywater - New Orleans, LA" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8334129602" owner="83865436@N07" secret="b602c47180" server="8213" farm="9" title="Pork Char Sui, Anchovy & Pork FIsh Sauce, Pickled Japanese Turnips, White Bread - Maurepas Foods - Bywater - New Orleans, LA" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8332288508" owner="83865436@N07" secret="61e5d0bb94" server="8491" farm="9" title="A little Toulouse Red Absinthe cocktail to help wish goodbye to 2012! Happy New Year!" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8333075549" owner="83865436@N07" secret="9c27363469" server="8080" farm="9" title="Toulouse Red Absinthe Cocktail - Maurepas Foods - Bywater - New Orleans, LA" ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8332477120" owner="91256725@N05" secret="c967f815cd" server="8351" farm="9" title="Bayou Poker." ispublic="1" isfriend="0" isfamily="0" />
    <photo id="8331955028" owner="91570942@N04" secret="49263aca62" server="8080" farm="9" title="My big friend" ispublic="1" isfriend="0" isfamily="0" />
  </photos>