Alarm Clock (formerly known as Alarm Applet) is a fully-featured open source alarm clock for your GNOME panel or equivalent.
It’s a fully-featured alarm clock which resides in the notification area. It’s easy to use yet powerful with support for multiple and repeatable alarms, as well as snoozing and a flexible notification system.
Two types of alarms are supported: Alarm Clocks and Timers. Notification is actioned by either playing a sound or launching an application.
Key Features
- Easy to use.
- Add, edit and delete alarms as well as start, stop and snooze them.
- Two types of alarms: Clocks, Timers:
- Clock will go off at a specific time of day.
- Timer will ring after the specified amount of time.
- Alarm by either playing a sound, starting your favorite music player, or run a custom command.
- Notification bubble.
- Snooze facility with a global snooze settings, and snooze for timers.
- Supports multiple alarms as well as auto-repeatable alarms.
- Support for application indicators – they provide a simple and effective API to provide an application icon in the notification area in the top-right part of the screen, and provide simple, accessible, and complete access to key parts of your application.
- Internationalization support.
Website: github.com/alarm-clock-applet/alarm-clock
Support:
Developer: Johannes H. Jensen and contributors
License: GNU GPL v2

Alarm Clock is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| GUI Clocks | |
|---|---|
| KClock | Convergent clock application for KDE Plasma |
| GNOME Clocks | Stopwatch, timer, alarms, and multiple clocks |
| Digital Clock 5 | Modern digital clock application (no support for Wayland) |
| QTalarm | Qt based alarm clock |
| catclock | xclock with an enhanced cat mode |
| svg-clock | Analog clock using Scalable Vector Graphics |
| retro | Customizable clock widget |
| multiClock | Track the time around the world |
| Alarm Clock | Fully-featured alarm clock for your GNOME panel or equivalent |
| xdaliclock | Advanced xclock substitute |
| dclock | Displays the time in digital format only |
| Hyprclock | Customisable clock application for the Hyprland window manager |
Read our verdict in the software roundup.
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