According to British researchers, Monday evenings saw a particularly high percentage of tweets containing swear words that may be related to job pressure after a family weekend.
Researchers from the University College London who analysed nearly 1.3 million tweets sent from smartphones in Britain, created a detailed map of the areas.
The results showed that Redcar and Cleveland are areas where Twitter users use the most swear words in their posts.
Oxford and Westminster were among the least coarse, BBC reported.
The spikes in swearing came on Saturday and Sunday afternoons during football games.
On weekdays, profane tweets were found to be more concentrated in mornings, at lunchtime and at the end of the working day.
“Based on our study, most of the top 10 swear tweet slots are actually taken up by rural areas rather than urban,” Dr Hannah Fry, one of the researchers, was quoted as saying.