Sgt_Kickaxe - 8:13 pm on Jan 8, 2013 (gmt 0)

I wish I could find the post but I reported similar traffic surges based on time of day years ago, it had a ripsaw effect on my charts and watching my log files in real time was quite entertaining and EXTREMELY predictable in its randomness.

Here's one post from 2010 that I mentioned time of day changes in Splugged but there was another a year before that I believe - [webmasterworld.com...]

Tedster called it "day-parting".