Free 45-minute countdown timer. Set it, go fullscreen and get to work — audio alarm fires when time's up. No sign-up, no download.
A complete 45-minute gym or home workout
Extended university-level study session
Individual chicken pieces at high heat
Complex problem-solving or research block
Music instrument practice session
The live timer above starts directly on this page — press START and the 45 minutes countdown begins immediately. An audio alarm fires when it reaches zero.
For the full experience with fullscreen mode and theme options, open GlowClock's timer tab, enter 45 minutes and press F11 to go fullscreen. The large glowing display is clearly visible across a room — ideal for classrooms, gyms and presentations.
Yes. Keep the GlowClock tab open and the alarm will fire even when you're in another tab. Make sure your device volume is on and the browser isn't suspended (this can happen on mobile when the screen locks).
Yes. Open glow-clock.com, set 45 minutes in the Timer tab and press F11. The countdown fills your entire screen in large, high-contrast text.
Yes. A clear audio alarm sounds when the 45 minutes countdown reaches zero. The alarm repeats until you dismiss it so you won't miss it.
Yes. Press Pause on the live timer above, or use the Pause button in the GlowClock app. Press Start again to resume from where it stopped.
Audio alarm · Fullscreen · No sign-up · Works on any device
Open Full Timer App