Twitter data tracks who's tweeting what by day.
Can your tweets predict the type of day you're going to have?
"You are what you tweet," writes Twitter's data editor Simon Rogers in a blog post. "It turns out that many of us tweet the same ways on the same days."
Twitter examined the usage of different words and phrases in 2013 by the day of the week and month. The blog post features charts showing the day and month when people most often tweeted about feeling sad, happy, hungover or when they were late to work.
Interactive Charts: Track Twitter moods by day
People are more likely to tweet "feeling sad" on a Sunday in December or a Monday in October, and "feeling happy" on a Tuesday in December and a Tuesday in January, which happened to be New Year's Eve last year.
Twitter users tweeted most often about being late for work mid-week in July and Fridays in January.
High time for hangovers were Sundays in March, and Thursdays and Fridays in November which coincides with the Thanksgiving holiday. Mondays in May were also a bad post-drinking day. Note: Cinco de Mayo fell on a Sunday last year.