Blue Monday? Now I know.

Erikjan Lantink
3 min readJan 20, 2023

Good news!

The most depressing day of the year is behind us.

Last Monday was Blue Monday, the third Monday of the year. And apparently also the most depressing day of the year.

I was not aware.

Until I met with a client at 5 pm that day during a video call. He mentioned that Blue Monday was almost over, and I had no clue what he was talking about.

I thanked him for giving me an idea for my next post, and he replied by expressing the wish to be part of my mailing list. So Blue Monday resulted in one new subscriber.

Happy Monday to me!

Then I did my not-so-sophisticated research, in this case, Wikipedia.

And I learned that Blue Monday is the most depressing day because of a formula that looks like this.

Good luck!

For your information. There are also different formulas available.

This formula uses many factors, including weather conditions, debt level (the difference between debt accumulated and ability to pay), time since Christmas, time since new year’s resolutions have been broken, low motivational levels, and the feeling of a need to take action.

With the weather being a factor, this obviously implies that Blue Monday is only valid for those countries where it’s winter at the moment.

No Blue Monday in the Maldives.

In the Maldives, it’s blue every day. Whether we speak about the seawater, the sky, or the color of some of the cocktails.

The Wikipedia article also mentions that Blue Monday has existed already since 2005. I must have been sleeping, or I’m not subject to depressive thoughts on Mondays.

I have no issue with Monday, unlike many other people. In the 80s, the Boomtown Rats also didn’t like Mondays: “tell me why I don’t like Mondays.”

But the formula does not mention that the day of the week is a factor.

The inventor of the formula and Blue Monday apologized in 2018 that “it was never his intention to make the day sound negative,” but rather “to inspire people to take action and make bold life…



Erikjan Lantink

Business & Leadership coach. Interim Leader. Writer. Speaker. Former Retail Executive (general management; operations; HR)