Choosing the quietest hour rather than a convenient one
Small offices have a rhythm that is worth observing before a time is fixed. Many are busiest mid-morning and again in the late afternoon, with a genuine lull immediately after lunch when people are out or in meetings. Placing the attendance in that lull rather than at a standard hour produces a noticeably better result and a much less intrusive experience for everyone involved.
The other candidate is the first hour of the day. Offices where staff arrive progressively rather than all at once often have a quiet period at the start that suits floor work in circulation areas and a proper kitchen clean before it gets used. The right answer differs between suites, which is why it is worth asking rather than assuming a standard time.
