Presentation Timer
A high-visibility stage timer for speakers and Scrum masters. Features traffic-light pacing, teleprompter mirroring, and Picture-in-Picture mode for Zoom/Teams.
About
Time perception distorts significantly under social pressure. Whether delivering a keynote, a thesis defense, or a daily stand-up, the internal clock fails. This tool is not merely a stopwatch; it is a pacing engine designed to offload cognitive monitoring. It utilizes peripheral visual cues - the classic Traffic Light system - to guide speakers from introduction to conclusion without requiring direct focus.
Accuracy is paramount in professional settings. A standard browser setInterval can drift by seconds over a long duration due to tab throttling. This tool employs Time-Delta correction using the system clock to ensure {
Formulas
Effective pacing is a function of speaking rate R and time t. The average English speaker articulates at approximately 140 words per minute (wpm). To calculate the script length L allowed for a given duration:
During the presentation, the timer helps manage the Pacing Index P, ensuring the speaker reaches the conclusion C before the hard stop Tmax:
The Traffic Light Logic triggers state changes based on thresholds θ:
Reference Data
| Format | Duration (min) | Green Zone (Safe) | Amber Zone (Wrap Up) | Red Zone (Stop) |
|---|---|---|---|---|
| Elevator Pitch | 1:00 | 0:00 → 0:45 | 0:45 → 1:00 | > 1:00 |
| Toastmasters Ice Breaker | 4:00 - 6:00 | 4:00 | 5:00 | 6:00 |
| Standard Speech | 5:00 - 7:00 | 5:00 | 6:00 | 7:00 |
| PechaKucha 20x20 | 6:40 | 0:00 → 6:00 | 6:00 → 6:40 | > 6:40 |
| Lightning Talk | 5:00 | 0:00 → 4:00 | 4:00 → 5:00 | > 5:00 |
| Scrum Stand-up (Team) | 15:00 | 0:00 → 12:00 | 12:00 → 15:00 | > 15:00 |
| TED Talk Style | 18:00 | 0:00 → 15:00 | 15:00 → 18:00 | > 18:00 |
| Pomodoro Interval | 25:00 | 0:00 → 20:00 | 20:00 → 25:00 | > 25:00 |
| Academic Conference | 20:00 | 0:00 → 17:00 | 17:00 → 20:00 | > 20:00 |
| Thesis Defense | 45:00 | 0:00 → 40:00 | 40:00 → 45:00 | > 45:00 |