Timer & Countdown

00:05:00
HH:MM:SS
1 min 5 min 10 min 15 min 20 min 30 min
Shortcuts: Space = Start/Pause, R = Reset, F = Fullscreen
Built by Dr Ngo Cong-Lem — optimized for teaching, workshops, and research tasks. Use presets for quick sessions, or enter a custom duration.