Establish the time honestly available
Subtract preparation for the next appointment from the apparent gap. Include travel, room changes and brief follow-up from the previous conversation. Half an hour between calendar entries may become considerably shorter. Do not plan as though meetings can be left without transition and unrelated work can immediately begin with full attention.
Check whether the interval has a fixed end or is likely to change. An uncertain gap suits work that can stop at a clear intermediate state. A process requiring several other people's responses is harder to control when those answers may arrive at any moment. Reserve a separate period for that work rather than repeatedly starting it in unpredictable fragments.
Choose an appropriate partial result
Keep a few tasks ready for differently sized gaps. A short interval might suit checking one table, while a longer one could support drafting a bounded section of text. Avoid a rigid catalogue claiming that a particular task always takes the same duration. Your working method and the current state of the material determine what actually fits.
Prepare the documents or link them to the task beforehand. If half the interval disappears while finding the right file, the entry process may be the problem. Describe the partial result so that you can tell after an interruption whether it was achieved. A clearly marked unresolved question is a useful stopping point; an unexplained half-edited passage makes resuming more difficult.
Stop deliberately before the next appointment
Finish with a brief note about the current state and next action. Save changes and close confidential material before opening the next meeting or screen-sharing view. Allow a small transition instead of clinging to the previous task until the final second and carrying its unfinished context into another conversation.
If useful work consistently fails to fit between meetings, examine the overall appointment pattern. Conversations may be grouped, or some coordination may happen in writing, by agreement with those involved. A better task list cannot by itself repair a week divided into unusable fragments. It can, however, reveal the continuous working time that is missing and support a more concrete discussion about scheduling.
