GoodMorning [blprnt.com] is a Twitter visualization tool that shows about 11,000 "good morning" tweets over a 24 hour period, between August 20th and 21st. And this is just a simple sample of Twitter activity around the globe. All tweets are color-coded: green blocks are early tweets, orange ones are around 9am, and red tweets are later in the morning. Black blocks are 'out of time' tweets which said "good morning" (or a non-english equivalent) at a strange time in the day.
You can watch the movies below.