When do you tweet the most? A statistical analysis on UK's Twitter posting time trends

To answer this question, I have used 75 million tweets posted from July to December (2010) and geolocated in the United Kingdom.

Figure 1. Fraction of daily tweets posted for every hourly interval

The general trend derived after performing a simple statistical analysis on this dataset is presented in Figure 1, where you can see the percentage of tweets posted in every hourly interval of a day. Interestingly, one can observe three distinct peaks with increasing frequency, one during lunch break, the next right after work time (for mainstream occupations) and the final one right after dinner time (or right before sleep or during a night out etc.).

Therefore, statistics confirm common sense. People won't tweet a lot during sleeping hours and will tend to post updates with an increasing frequency as the day evolves. The most active hour for Twitterers is 21:00 to 22:00.