Software · Utilities & files

Clock

Name: Clock
Author: KDE

Clock is a clock and alarm program, available on Linux.

Completely free
Linux
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
License: GPL-2.0+ — Open source (copyleft)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms)
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: Not applicable
Ads: not documented
Platforms: LinuxEstablished by Linux: Flathub
Publisher: KDE
Latest version: 26.08.1 (10 September 2026)
Latest activity: 19 September 2026
Source code: invent.kde.org/utilities/kclock

At a glance

All of Clock is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

A universal clock application for desktop and mobile. Clock includes a stopwatch and a world clock, and allows you to set multiple alarms and timers. It contains alarm, timer, stopwatch and timezone functionalities. Alarms and timers are able to wake the device from suspend on Plasma.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 10 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 7 November 2026
Last technical check: 5 November 2026
Description from Flathub — AppStream (Flathub)

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