How can I communicate timing unpredictability respectfully at work due to ADHD

PostedDecember 31, 2025

UpdatedDecember 31, 2025

ByMy Patient Advice

Author: Harriet Winslow, BSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Many adults with ADHD experience real difficulties managing time, switching tasks and staying consistently punctual. This can lead to unpredictable arrival times, missed deadlines or variable focus during the working day. According to NICE guidance on ADHD and NHS information on adults with ADHD, these are recognised functional features of the condition rather than signs of unreliability. UK workplace frameworks such as ACAS and CIPD encourage open, constructive conversations about ADHD-related challenges and reasonable adjustments to support performance and wellbeing.

How ADHD affects time and organisation at work

Research shows that adults with ADHD often underestimate how long tasks will take and find it harder to remember to act at the right time. A 2021 review in Brain Sciences described time perception as a “focal symptom” of ADHD, while a 2019 study on ADHD and time perspectives found that adults with ADHD have shorter “time horizons,” meaning they are more focused on the present than future events. This makes long-term planning and punctuality especially challenging.

NHS workplace resources note that executive-function issues such as organisation, prioritising tasks and switching attention can also cause delays or inconsistent timing. Without support, these factors can create stress or embarrassment at work, especially when others misinterpret them as lack of effort.

NICE, NHS and workplace guidance

According to NICE guideline NG87, ADHD causes functional difficulties in areas such as organisation and time management. NICE recommends psychoeducation, CBT-based skills training and medication to help manage these symptoms. The NHS ADHD workplace resources also encourage discussing practical adjustments with managers or occupational health teams to support consistency and reduce stress.

ACAS guidance highlights that employees can explain how ADHD affects their work and what adjustments might help, without needing a scripted disclosure. Examples include flexible start times, written priorities, regular check-ins and quiet workspaces. The CIPD’s Neuroinclusion guidance encourages clear communication, follow-up in writing and framing discussions around strengths as well as needs.

How to communicate timing unpredictability respectfully

Experts recommend being clear, confident and solution-focused when discussing time challenges. Describing specific impacts helps managers understand the issue. For example, saying “ADHD affects how I estimate time and switch tasks, so I sometimes misjudge when to start or how long something will take” is more helpful than simply stating “I struggle with time.” Linking requests to work outcomes also helps: “If we can agree a 15-minute start-time window and use shared calendar reminders, I’ll be able to plan better and meet expectations.”

It can also help to prepare a short written list of adjustment ideas before the meeting. Suggestions might include flexible start times, clear agendas, digital reminders or access to coaching. These are consistent with NICE and NHS guidance and are common examples of reasonable adjustments for ADHD.

Using strengths-based language can further build understanding. Emphasising traits such as creativity, focus under pressure and problem-solving alongside time challenges makes the conversation more balanced and professional.

Key takeaway

Communicating ADHD-related timing unpredictability at work should be seen as part of inclusive practice, not a personal failing. According to NICE and NHS workplace guidance, adults with ADHD benefit most from open communication, structured routines and reasonable adjustments agreed collaboratively. By explaining timing challenges calmly, focusing on solutions and using the language of inclusion and performance, it becomes possible to maintain professionalism, build understanding and create a more supportive work environment for everyone.

Harriet Winslow, BSc

Author

Harriet Winslow is a clinical psychologist with a Bachelor’s in Clinical Psychology and extensive experience in behaviour therapy and developmental disorders. She has worked with children and adolescents with ADHD, autism spectrum disorder (ASD), learning disabilities, and behavioural challenges, providing individual and group therapy using evidence-based approaches such as CBT and DBT. Dr. Winslow has developed and implemented personalised treatment plans, conducted formal and informal assessments, and delivered crisis intervention for clients in need of urgent mental health care. Her expertise spans assessment, treatment planning, and behavioural intervention for both neurodevelopmental and mental health conditions.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.