From George Smart's Wiki
One of the applications on my android phone backs up all my SMS (text) messages to my GMail (Google Mail) account. This in turn is synchronised with my Server. Ultimately, these SMS messages get filed away on my computer, never to be looked at again; or so I thought!
Today, while waiting for something interesting to happen, I decided to analyse these messages and plot the times of day that I send and receive text messages most. Below are two graphs showing the days of the month and the times of day that I use my phone the most. All done for no other reason that I wanted to see what the graphs would look like!