Blue Monday 2027 falls on Monday 18 January, and it is not real: the idea began with a 2005 travel-company press release built around a made-up formula, and there is no scientific evidence that any one day is the most depressing of the year. What is real is January itself. It brings the latest sunrises of the year, some of the shortest days, the post-Christmas bank balance and a return to routine, and that combination deserves to be taken seriously.
At DAYARC, a new UK circadian rhythm startup, we make two bright-light lamps for the morning, so dark January mornings are on our minds for most of the year.
Where did Blue Monday come from?
Blue Monday is a marketing invention. In 2005 a travel company put out a press release claiming that a formula could identify the most depressing day of the year, and named the third Monday in January. The formula had no scientific basis, and no study since has shown that one January day is worse than the rest.
Samaritans puts it plainly: there is no such thing as Blue Monday, and feeling low is not something that only happens on Mondays. The charity runs Brew Monday on the same day instead, encouraging people to have a cuppa and a catch-up with someone they care about.
What do people say about Blue Monday 2027, and what is actually true?
| What you will hear | What is actually true |
|---|---|
| Blue Monday is the most depressing day of the year | No evidence. The claim came from a 2005 press release, not from research. |
| A scientific formula proves it | The formula was a publicity device with no scientific basis. |
| Everyone feels low on the third Monday of January | Low mood does not keep to a calendar, and people who need support in January need it all year. |
| January is no harder than any other month | Not true either: January has the latest sunrises of the year and about 8 h 20 min of daylight in London in mid-month. |
Why is January genuinely hard in the UK?
The latest sunrises of the winter come after the shortest day, not on it: in London the sun rises at 08:06 from about 26 December to 3 January, and in Edinburgh at 08:44 from around Christmas into early January. On Blue Monday itself, 18 January 2027, sunrise is 07:57 in London and 08:30 in Edinburgh, with sunset at 16:24 and 16:15.
The days are short too. On 15 January London gets 8 h 20 min of daylight, Manchester 8 h 02 min, Edinburgh 7 h 36 min and Inverness 7 h 18 min, and for anyone who works indoors most of it happens through a window. Our post on why winter mornings feel so tiring explains what waking in the dark does to your daily rhythm.
Add the credit-card bill, the return to work or school, colder weather and fewer plans, and you have a demanding month with no formula required.
For some people it is more than that. Seasonal affective disorder (SAD) is a form of depression that comes and goes with the seasons, usually worse in winter, and for people who have it the darkest weeks of the year are often the hardest. The NHS lists the symptoms, including a persistent low mood, losing interest in things you usually enjoy, and sleeping and eating more than usual. If that sounds familiar, see a GP; winter blues or SAD? covers the difference.
What is a sensible January light plan?
The NHS's own advice for the darker months includes getting as much natural daylight as you can, exercising regularly, keeping in touch with people and keeping a regular sleep pattern. Built on that, a January plan has four parts.
- Bright light soon after waking. Morning light is the signal that nudges your body clock, the internal timer that sets when you feel alert and sleepy, earlier. Before sunrise, that means a bright-light lamp at the breakfast table, or the curtains open the moment it is light.
- A consistent wake time. Get up at the same time every day, weekends included, so the morning signal lands at the same point each day.
- Daylight at lunchtime. An overcast UK winter day is still roughly 1,000–5,000 lux outdoors, against 300–500 lux in a bright office (lux is a measure of how much light reaches a surface). Twenty minutes outside at midday is the cheapest light of the month.
- Keep your social plans. January is when invitations dry up. A cuppa with someone counts.
Where does a bright-light lamp fit in January?
A bright-light lamp, also called a SAD lamp or light box, is a panel designed to deliver 10,000 lux at a stated distance. Bright light therapy is used for SAD, and research suggests it may help some people: a 2020 meta-analysis of 19 randomised trials found it modestly better than placebo. The NHS says light therapy is not usually available on the NHS because there is not enough evidence to tell whether it is effective, though many people find it helps their symptoms.
The lamp's job in January is a fixed morning routine on the days you wake before sunrise: 20 to 30 minutes at the rated distance while you eat breakfast, at the same time each day. How to build a morning routine around a light therapy lamp goes through the details. Mid-January is not too late to start: sunrise is still 07:39 in London and 08:08 in Edinburgh on 1 February, and our month-by-month guide runs the dark mornings into late February.
DAYARC Rise (£199) is rated at 10,000 lux at approximately 30–36 cm and has a 15, 30, 45 or 60-minute timer; DAYARC Mini (£49.99) is rated at 10,000 lux at approximately 25 cm and folds into its own cover. Both use UV-free LEDs and run from the mains. Neither is a treatment for SAD, and neither replaces daylight, a GP or the people you would meet on Brew Monday.
When should you speak to someone?
If low mood lasts for weeks, affects your work, sleep or relationships, or comes back every winter, speak to your GP. The NHS says SAD is generally diagnosed when depression symptoms return at the same time of year for two years or more, and lists talking therapies such as CBT and antidepressants as treatments.
If you need to talk to someone now, Samaritans is on 116 123, free, day or night. Blue Monday may be invented; the need for support in January is not.
Frequently asked questions
When is Blue Monday 2027?
Monday 18 January 2027, the third Monday of the month. It is also Brew Monday, the Samaritans day for a cuppa and a catch-up.
Is Blue Monday scientifically proven?
No. It began as a 2005 travel-company press release with a made-up formula, and no research shows that one January day is more depressing than another.
Why is January so hard in the UK?
The latest sunrises of the year (London 08:06 into early January, Edinburgh 08:44), around eight hours of daylight, post-Christmas bills and a return to routine all land at once.
What can I do on Blue Monday?
Treat it like any other Monday in January: bright light soon after waking, a walk at lunchtime, your usual wake time and a plan to see someone. If you are struggling, Samaritans is on 116 123.
Where does this leave you?
Ignore the formula, respect the month. If you wake before sunrise through January, a fixed morning light routine is a reasonable habit that needs no special date. DAYARC Rise suits a regular spot at the kitchen table, DAYARC Mini a desk or a smaller space, and the choose your light page sets the two side by side. The lunchtime walk and the cup of tea with a friend cost nothing.
About DAYARC
DAYARC is a new UK circadian rhythm startup. We make two bright-light lamps for the morning: DAYARC Rise (£199), a full-size lamp rated at 10,000 lux at approximately 30–36 cm, with four brightness settings, a 15 to 60-minute timer and adjustable height and angle; and DAYARC Mini (£49.99), a compact lamp rated at 10,000 lux at approximately 25 cm, with a folding stand that doubles as its cover. Both use UV-free LEDs and run from the mains. We publish plain specifications with the measuring distance, we do not make medical claims, and we write the DAYARC Journal to help people build a simple morning light routine around their own daily rhythm. Both lamps are in stock in the UK and dispatched within 2 working days. You can read more about how we think on our approach page or compare the two lamps.
This article about Blue Monday and January light is general information, not medical advice. Check with a GP or qualified healthcare professional before using bright light if you have an eye condition, a condition affected by bright light such as bipolar disorder, or take medicines that increase your sensitivity to light. If you have persistent low mood or think you may have depression, speak to your GP. If you need urgent help, contact NHS 111, or call 999 in an emergency. You can also call Samaritans on 116 123, free, at any time.