Finishing a call at two does not always mean you can start writing at two. You may need to save notes, get water and find the document. At home, another person may need your attention as soon as a meeting ends.
Look for one transition that regularly makes you late. Give it a little room in tomorrow's plan. The amount depends on what the change involves: moving rooms takes less preparation than travelling to an appointment or collecting a child.
Notice what happens in the gap
For a few days, observe the steps between finishing one activity and starting the next. Some belong in the plan. Others, such as an automatic visit to a shopping app, may be optional detours you can choose to skip.
If your calendar cannot hold a buffer, adjust the promise about when the next activity will start. You can say that you will send the notes after you have returned to your desk. A realistic handover time is easier for others to use than an immediate response that depends on everything going perfectly.
