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How do I avoid showing up too early or too late in professional settings when I have ADHD 

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

Arriving too early or too late to meetings is a common experience for adults with ADHD. According to NICE guidance on ADHD (NG87) and NHS self-help materials, these patterns are not about motivation but reflect real differences in how ADHD affects time perception, planning, and executive control. Research shows that “time blindness” and fluctuating temporal awareness make it genuinely harder to estimate how long tasks take or to judge when to begin getting ready. 

Understanding why ADHD affects punctuality 

2023 review of time perception in adult ADHD found that adults with ADHD consistently misjudge time intervals, often leading to over- or underestimation. When a task feels short in the moment, it is easy to leave too late; when anxiety about lateness is strong, people may leave very early to avoid stress. This can create an unpredictable pattern of arrival times. The ADHD Evidence Project’s meta-analysis confirmed that timing and organisational difficulties are central to ADHD and are part of its neurological basis rather than poor habits. 

Executive-function difficulties, such as problems with working memory and sequencing, make it hard to hold future intentions in mind. As a result, cues like “leave at 8:15” are easily lost amid distractions. UK self-help guidance notes that anticipatory anxiety about lateness can push people to over-compensate by leaving too soon, while on other days, low urgency leads to rushing or running late. 

Practical workplace strategies 

NHS and NICE-aligned resources recommend a combination of environmental tools and behavioural strategies. Using multiple phone alarms or visual timers helps make time visible instead of relying on internal awareness. NHS booklets advise setting two alarms, one for “start getting ready” and another for “leave now.” Structured approaches such as backward planning, where you work backwards from the arrival time (“meeting at 9:00 → travel 30 minutes → preparation 20 minutes → start at 8:10”), are also widely supported. 

CBT-informed coaching can help manage thinking patterns linked to punctuality, such as “time optimism” or fear of being late. The Frontiers in Psychology workplace review found that combined behavioural and coaching approaches improve organisation, planning, and time awareness. 

Under the Equality Act 2010, employers have a duty to provide reasonable adjustments for adults with ADHD, such as flexible start times or written meeting reminders. These align with NICE recommendations for environmental support and psychoeducation as part of holistic ADHD management. 

Private assessment and review services such as ADHD Certify can also help adults access structured support, particularly when workplace difficulties are affecting confidence or wellbeing. 

Key takeaway 

If you find yourself swinging between arriving too early or too late, it’s not a failure of discipline but a reflection of how ADHD shapes your sense of time. By making time visible, building predictable routines, and seeking structured support, you can create steadier patterns that reduce stress and improve reliability in professional settings. 

Harriet Winslow, BSc
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. 

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