I have a hospital appointment this week, it's quite a routine appointment (so not particularly important but still needed) but appointments are only available during the normal working week. I usually make sure all of my medical appointments are in the evening or weekends where possible, this is the only exception.
I need around 2 hours off for it, because it's a double appointment and is a 1 hour round trip to the hospital. At my work, they are really flexible and you just have to mention it to colleagues and let them know you'll be offline but will make up the time in the evening or over lunch - which is what I did. Most of my colleagues take time off for the opticians , the dentist and physio appointments (for context).
My employer has now moved an important meeting which now falls at my appointment time. It's not recorded, and it's a compulsory meeting (there was another session of the meeting last week, but I couldn't make that one). At the time of the appointment when I booked it I checked my calendar and it was free, they just moved the meeting today.
WIBU to mention it to my manager and ask if I can miss the meeting still? Or should I cancel the hospital appointment given that it's a compulsory meeting?