Clock

Clock is a customizable, privacy‑first, open-source clock app inspired by AOSP Clock.
It combines modern design, powerful features, and transparency — giving you full control over your time.

📑 Table of Contents

• Download
• Features
• Common Issues
• Contributing
• License
• Screenshots
• Credits

📥 Download

[!NOTE]
Build variants:

• Release: Stable versions recommended for everyday use (available on all platforms above).
• Nightly: Experimental builds with the latest changes, may be unstable (available on GitHub, and also on Obtainium if you enable "Include prereleases").
• Debug: Developer-oriented builds with extra logging and diagnostics (available only on GitHub).

All variants (Release, Nightly, Debug) can be installed side by side without conflict.

✨ Features

• ⏰ Advanced alarms

• Set alarms to a specific date
• To dismiss/snooze alarms:
  • Flip or shake your device
  • Use power or volume buttons to snooze/stop
  • Solve math problems
• Swipe to delete, duplicate, or customize alarms
• Custom titles, backgrounds, and ringtones (including random playback)

• 🎨 Customization

• Light, dark, or system theme
• AMOLED mode for deep blacks
• Digital or analog clock styles
• Customizable interface, screensaver, and widgets
• Dynamic colors for Android 12+

• 🌍 World clock

• Display home time when abroad
• View time in multiple cities worldwide

• ⏱️ Timer & stopwatch

• Built-in timer and stopwatch
• Share stopwatch results with contacts

• ⚙️ Extra features

• Quick settings tiles (Android 7+)
• Backup & restore (except custom ringtones)
• Material Design UI
• Support for Direct Boot
• Alarm support on some Snapdragon devices when powered off
• Reproducible Builds for transparency

[!NOTE]
Some extra features may not work on certain devices:

• Direct Boot support: see the discussion here.
• Power‑off alarm on Snapdragon devices: may fail even if the "com.qualcomm.qti.poweroffalarm" system app is present. See the discussion here.

🐞 Common Issues

• Device-specific issues may occur due to limited testing.
• On Android 14+ with HyperOS, the "Full screen notification" permission may be revoked. Possible solution here.
• MIUI users may face problems due to aggressive battery optimizations.
  • Please make sure that battery optimizations are disabled for the app before opening an issue.
• For ZTE devices, go to: Settings → Battery → Apps AI-control → Clock → Set Auto-start, Secondary Launch, and Background running to "Allowed" from "Automatic" to ensure alarms trigger correctly.

[!NOTE]
I’m not an expert developer, so some problems may require community help to solve.

🤝 Contributing

See CONTRIBUTING.md for guidelines on reporting issues, translations, and code contributions.

Click here to see the translation status

📜 License

Clock is licensed under GNU General Public License v3.0 (GPLv3). This strong copyleft license requires that any modifications or larger works using Clock must also be distributed under the same license, with complete source code available.

See the LICENSE file for full details.

[!NOTE]
Since Clock is based on AOSP Clock, which is licensed under Apache License 2.0, an additional Apache 2.0 license file is provided in this repository.

📷 Screenshots

Click here to see screenshots

🏅 Credits

• 🖼️ App icon inspired by LineageOS DeskClock, modified by BlackyHawky
• 💻 Code references and inspiration from:
  • LineageOS
  • crDroid Android
• 🌍 Translations provided by the community via Weblate
• 🤝 Thanks to all contributors who help improve Clock