Clockflux

Where work ends: why your evenings matter for your mental health

Mental health4 min readBy

Most of us don't leave work at the office any more. It comes home in a pocket. A quick reply after dinner or a look at the inbox before bed doesn't really feel like working, but those minutes add up, and there's a growing amount of research on what they cost us.

This is our first post on mental health. It starts with the most basic boundary there is: knowing when your working day ends.

The workday that never quite stops

In June 2025 Microsoft published a Work Trend Index report on the "infinite workday", based on Microsoft 365 usage data. Some of what it found:

  • meetings starting after 8 p.m. were up 16% on the year before
  • the average employee sends or receives more than 50 messages outside core hours
  • by 10 p.m., nearly a third of active workers are back in their inbox
  • nearly 20% of people who work at weekends check email before noon on Saturday and Sunday

Each of these is small enough to shrug off on its own. Put together, they eat into the time that was supposed to be for rest.

What it does to us

A 2025 study in the Scandinavian Journal of Work, Environment & Health followed 1,465 full-time employees in Norway over four survey waves. Since it followed the same people over time, the researchers could look at what changed for someone during the periods when they worked more outside normal hours. They found that:

  • late-evening work (after 9 p.m.) and long days and weeks went with more conflict between work and home, and people found it harder to mentally switch off
  • long working weeks (over 40 hours) went with higher burnout
  • quick returns, meaning less than 11 hours between finishing one shift and starting the next, were linked to burnout for people with little control over their own schedule

Psychologists call that switching off psychological detachment, and it's a big part of how we recover from work. If you're still going over tomorrow's meeting in your head at 11 p.m., you haven't really had an evening off, even if the laptop stayed shut.

There's a physical cost as well. The WHO and ILO estimated that working 55 hours or more a week is linked to a 35% higher risk of stroke and a 17% higher risk of dying from ischaemic heart disease, compared with working 35 to 40 hours.

Some countries now write the boundary into law

More and more countries give people the right not to answer. In Australia, a right to disconnect has covered employees of larger businesses since August 2024, and those of small businesses since 26 August 2025. Employees can refuse to monitor, read or respond to work contact outside their working hours, unless refusing would be unreasonable. France has had a similar right since 2017, and other countries are following.

Nobody is stopped from sending the message. The law just protects your choice not to pick it up, and you can make that choice for yourself wherever you work.

Small ways to get your evenings back

A few habits go a long way:

  1. Pick a time when your day ends. Even a rough finishing time means "just one more thing" becomes something you decide to do, rather than something that happens.
  2. Write down the next step before you stop. For anything unfinished, note what comes next. It's much easier to stop thinking about a task once it's written down somewhere you trust.
  3. Make work apps harder to reach. Turn off notifications after hours, or move work apps off your home screen, so that opening them is a choice.
  4. Schedule emails instead of sending them late. If you write an email at 10 p.m., set it to go out at 9 a.m. Your colleagues get their evening too.
  5. Protect your 11 hours. If a late night can't be avoided, start later the next day if you can. The rest between two working days matters as much as how long either day was.
  6. Look at the trend. One long week happens. A month of long weeks is a pattern, and that's what wears people down.

Where Clockflux fits in

That last point is a big part of why we built Clockflux. When you log your hours, the Health view compares your last four weeks with your target and tells you whether you're on track, under or over. It also keeps a running overtime balance. If that balance keeps going up, it's probably time to take some hours back.

It's a small feature, but it's hard to keep to a boundary when you can't see where it is. To check a week without the app, the overtime calculator adds it up against your target, and how to calculate overtime walks through the sums.

If work stress is affecting your sleep, your health or your relationships, please talk to someone: your doctor, a mental health professional or an employee assistance programme if your employer offers one. Tracking hours can show you a pattern. It is not a substitute for support.