The popular site went down in parts of the UK at 3:00 PM local time, which coincided with midnight in Japan, where an incredible 16,000 tweets a second were recorded! The record amount of exchanges overloaded the site's servers, causing twitter to crash. Users were unable to make new posts to their twitter feeds or read other's posts, as they were greeted with the dreaded "twitter is currently overcapacity" error message!
The site was able to return to normal operations...for a short amount of time, as each hour marked the New Year in another part of the world, with millions of users sending out more New Year's greetings to friends, family and subscribers, creating more slow downs and error messages.
Users should anticipate more downtime for the site, as there are still many more locations that have yet to hit the midnight mark to ring in the New Year, including New York, Chicago, and Los Angeles.