People are happiest on weekends, according to data extracted from Twitter.
Cornell University researchers analyzed 500 million tweets from 2.4 million people in 84 countries over a 2 year time span. They programmed an algorithm that determined positive moods (happy, enthusiatic, etc.) and negative moods (sad, anxious, etc.) through keywords.
The data revealed that positive attitiudes were most prevalent in the morning and at night, with a dip in midday that rises during the evening.
The results also suggest that people are overall happier on the weekend (although you don't really need research to confirm this).