Simple Timer is a GNOME Shell extension that adds a customizable countdown timer to your top panel. When the timer ends, it notifies you with a visual alert and a customizable sound effect.
Perfect for reminders, productivity breaks, or - yes - not burning the pizza again.
There are two ways to enter the duration:
You can simply type the time in. The format hh:mm:ss will be automatically added.
Examples:
5->0:05112->1:1253000->5:30:00
You can specify the duration using hours, minutes, and seconds (h, m, s). The order of these units is flexible and does not need to follow a specific sequence.
Examples:
5s->0:051m 12s->1:125h 30m->5:30:0030m 5h->5:30:001m->1:00
- Visit the official GNOME Extensions page for Simple Timer
- Click on the "ON/OFF" switch to install the extension. If prompted, follow the instructions to enable the GNOME Shell integration.
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After downloading the extension just run the install script:
chmod +x install.sh ./install.sh
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To enable the extension install gnome-extensions-app and run gnome-extensions-app
sudo dnf install gnome-extensions-app gnome-extensions-app -
Or open the gnome extension webpage and enable the extension from there:
- Polite.wav Source: https://github.com/akx/Notifications


