What does the law actually require?
Under the Health and Safety (Display Screen Equipment) Regulations, employers must plan the activities of DSE users so that their daily work on display screen equipment is periodically interrupted by breaks or changes of activity.
That obligation is about how work is organised. A change of task can sometimes provide the interruption — for example, moving from concentrated screen work to another activity that does not involve the same continuous DSE demands.
Does UK law require five minutes every hour?
No. HSE states that there is no legal guidance specifying exactly how long or how often DSE breaks must be. The right pattern depends on the work being carried out.
HSE gives an example that 5–10 minutes every hour is preferable to 20 minutes every two hours, but that is guidance about the pattern of breaks — not a statutory rule requiring every employer to use those exact timings.
For the same reason, the 20-20-20 rule can be used as a practical eye-rest routine, but it is not itself a requirement of UK DSE law.
HSE — Work routine and breaks for DSE users
What makes a useful DSE break?
HSE recommends shorter, more frequent interruptions rather than longer, less frequent breaks. A break or change of activity should give the user an opportunity to stop the continuous DSE task and, where possible, move, stretch or change posture.
A useful interruption does not necessarily have to mean doing nothing. In many jobs, another task — such as attending a meeting, making a phone call or carrying out a non-screen activity — can interrupt prolonged DSE work.
Employers still need to plan the work
Where a job naturally includes enough changes of activity, separate rest breaks may not always be necessary for the purpose of interrupting DSE work. Where there are no natural interruptions, employers should plan suitable breaks.
The important point is that responsibility does not rest solely with the employee remembering to stop. Employers remain responsible for organising work appropriately and making sure suitable arrangements are in place.
Can break-reminder software help?
Yes. HSE specifically recognises break-monitoring software as a tool that can remind DSE users to take regular breaks. It also makes clear that such software is not essential and does not transfer the employer's responsibility to the software.
The maintained HSE guidance also favours reminders over unnecessarily forcing users to stop without warning. In practical terms, workplace reminder software should support the working routine rather than becoming an obstacle to it.
That is the role 20-20-20 Vision for Workplaces is designed to fill: helping organisations make an agreed screen-break routine easier to remember and deliver consistently, while fitting around meetings, presentations, video calls and other real working patterns.