While Guinness has officially nominated Monday as the worst day of the week saying it is a record indeed, Twitter users were all in agreement that Monday blues exist.
If you read the comments from the thread above, you will see how hilarious it is and how some people made fun of Monday.
In the world where the 4-day week is being hotly discussed, we could suggest that Monday be made the last day of the weekend, but then, for school kids, it is Friday which is the worst day of the week for some. For us, it is Sunday.