Presentation timers
A conference and lecture timer for the room
A conference schedule is a promise to a few hundred people at once. The talks that wreck it rarely mean to. They just cannot see the time. Give every session a visible clock.
One Mac, every session
Set up a Mac where the speaker can see it and start a countdown for each slot: “25 min” for the talk, “5” for questions, “10” for the break. Take the timer full screen so it reads from the lectern, or keep it large in a corner of the room display.
Lectures on the clock
For a lecture, the timer works facing either direction. Facing you, it paces the material. Facing the class, it time-boxes discussions and exercises: type “5 min” for group work and let the countdown call time.
Session changeover in one line
Next speaker, same slot: reset and start. Different slot: type the new length and press Return. The timer is ready before the next presenter has plugged in. A speaker timer setup for the whole day takes less effort than announcing time warnings ever did.
Breaks that end on time
Breaks drift worse than talks. Put a full screen countdown on the room display during the break, or type the restart time itself: “1:30pm” counts down to the moment the next session begins. People pace their coffee against it, and the next session starts with the room already seated.
Try the free web timer on the room Mac. The Mac app adds full screen and count up for the day’s sessions.
The schedule is the product. A visible clock is the cheapest way to keep it.