Why do I show up way too early to appointments with ADHD
People with ADHD often find themselves arriving unusually early for appointments, not because they are especially organised but as a reaction to the same difficulties that can also cause lateness. According to NICE guidance on ADHD, this pattern often stems from time blindness, executive dysfunction, and emotional sensitivity. Many adults describe overcompensating for past experiences of being late or criticised, arriving early as a way to manage anxiety, avoid disapproval, or feel more in control.
Understanding why this happens
Arriving too early can be a learned coping strategy rather than a personality trait. Research published in BJPsych Advances explains that ADHD can involve “temporal myopia,” meaning a person’s sense of time is distorted and focused more on the present moment than on future outcomes. This difficulty estimating time, often called time blindness, means individuals might leave far earlier than needed because they cannot gauge when to start moving. The NHS page on adult ADHD notes that problems with planning, sequencing and emotional regulation are common and can significantly affect day-to-day organisation.
Time perception and anxious overcompensation
When people with ADHD do not trust their internal sense of timing, they may overcorrect by planning excessively or sticking to rigid rules like “always get there early.” This overcompensation is often driven by anxiety and fear of letting others down. According to the 2024 NHS guideline update on ADHD, such behaviours can be understood as coping patterns that develop to reduce emotional distress linked to unpredictability.
Rejection sensitivity and fear of criticism
Rejection sensitivity, which is highly associated with ADHD, can also play a role. A 2023 open-access study on rejection sensitivity and adult ADHD found that many individuals feel intense fear of disappointing others or being perceived as unreliable. This emotional reaction can lead to overly cautious behaviour, arriving much earlier than necessary to avoid any chance of negative feedback. The pattern reflects not perfectionism but self-protection and an effort to manage strong emotional responses.
Emotional regulation and “playing it safe”
Emotional dysregulation, frequently discussed in NHS ADHD information, can make worries about lateness feel overwhelming. Adults may internalise strict standards like “I must never be late” and treat early arrival as a form of safety behaviour. Psychological research, including a review in BJPsych Advances, suggests that this behaviour can temporarily reduce anxiety but also reinforce the underlying fear of failure.
Practical strategies and treatment links
The NICE ADHD recommendations emphasise that practical tools such as external reminders, realistic time estimates, and behavioural coaching can help. For example, services such as ADHD Certify provide assessment and follow-up support for adults seeking structured time-management guidance aligned with NICE standards. Addressing coexisting anxiety through therapy or coaching, such as approaches offered by Theara Change, can also reduce overcompensating habits by improving confidence and emotional balance.
Key takeaway
Showing up too early is not simply about punctuality. For many adults with ADHD, it reflects anxiety, time distortion, and learned coping behaviours rooted in executive-function challenges. Recognising and treating the underlying causes through medication, behavioural strategies, or psychological support can help build healthier, more flexible routines and reduce the stress surrounding punctuality.
