So today someone had arranged to collect something they bought from me that was advertised online. She said she would arrive at a particular time, at 20 minutes past this time she still had not arrived. This made me wonder, how late is ok and what is just rude? FYI - She then messaged me, told me she would be with me in half an hour then arrived 45 minutes later (Over an hour later than originally agreed), not that I really did mind, it was only merely inconvenient as I needed to get DS down for naptime.
When I buy things and arrange to collect, generally I give a time frame, e.g. between 2pm and 3pm. In the cases where the person has given me a specific time then I am usually up to 10 minutes late (any later and I will message them). If I am early, I tend to apologise for my early arrival if I am more than 20 minutes early.
So, for me, acceptable is up to 20 minutes early and no later than 10 minutes late. AIBU? What do you think is acceptable?