I have a specialist appointment on [day] and will need to leave by [time]; I'll plan cover around it.
Running late
Running Late From A specialist appointment: Telling Your Boss
If a specialist appointment runs over, a prompt update with a revised time keeps your manager informed and your day workable.
Say what you need, briefly
Specialist and clinic appointments are booked ahead and fixed. Give the date early and focus on cover; the nature is yours to keep private.
Update your return time clearly
If you're running late back, send a short update as soon as you know, with a revised time and confirmation that nothing urgent is slipping. A prompt, factual update protects trust better than going quiet.
Example messages
I have a clinic appointment I can't move on [day]; I'll head out by [time] with my work handed off.
A medical appointment means I need to leave by [time]; priorities will be covered first.
Mistakes to avoid
Don't go quiet and let people wonder. A short, prompt update with a new time is what's needed.
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This page shares wording ideas, not legal or HR advice. Follow your own employer's time-off policy.
Common questions
Do I explain the specialist?
No. A medical appointment you can't move is a complete reason.
When should I send the update?
As soon as you know you'll be late back, with a revised time and cover confirmed.