Day and night clock
Stefan Fruhner Personalization In-app purchases
a simple DayDream clock that dims at night, but is bright during the day.
- Rating
- 4.2
- 6.7K ratings
- Downloads
- 1M+
- on Google Play
- Price
- Free
- In-app purchases
- Updated
- Sep 14
- 2026 · v2.11.31
Screenshots
About Day and night clock
NightDream
... a desk clock that is also suitable for the night. In dock mode this app provides a simple digital clock that automatically adjusts its brightness, During the day the display is bright, but in the night it dims to a minimum brightness. Simply adjust the font size using a two-finger-zoom gesture.
Daydream
This app can be used as a Daydream from Android 4.2 on.
Quick alarms
Using a swipe from the left, you can set the alarm clock. Delete it by tapping on the lower right corner.
Battery
While charging your mobile device an estimate time is calculated until the battery is full.
Notifications
You can enable notifications for missed phone calls, GMail, WhatsApp and twitter. On Android 4.3+ go to Settings > Security > Notification access > enable NightDream.
In earlier versions of Android go to Settings > Accessibility > enable NightDream.
In-App Payments
The current weather conditions can be shown below the time. This feature purchased within the app
The project is open source. If you want to send a donation you can do this via in-app purchase.
Permissions
android.permission.MODIFY_AUDIO_SETTINGS
This permissions allows to siilence the device during the night mode.
android.permission.RECORD_AUDIO
During the night mode the screen may be deactivated. It can be switched on again if a certain ambient noise level is reached. Therefore the app continuously records audio. The app does not store audio data.
android.permission.WAKE_LOCK
The app is allowed to wake the device from sleep in order to enable the screen and to keep the screen on.
android.permission.READ_EXTERNAL_STORAGE
The permission is necessary to read background images from the external storage.
Screen Lock
This app uses the Device Administrator permission. The permission is exclusively used to lock the screen while the app is running. Before uninstalling the app the permission must be revoked.
... a desk clock that is also suitable for the night. In dock mode this app provides a simple digital clock that automatically adjusts its brightness, During the day the display is bright, but in the night it dims to a minimum brightness. Simply adjust the font size using a two-finger-zoom gesture.
Daydream
This app can be used as a Daydream from Android 4.2 on.
Quick alarms
Using a swipe from the left, you can set the alarm clock. Delete it by tapping on the lower right corner.
Battery
While charging your mobile device an estimate time is calculated until the battery is full.
Notifications
You can enable notifications for missed phone calls, GMail, WhatsApp and twitter. On Android 4.3+ go to Settings > Security > Notification access > enable NightDream.
In earlier versions of Android go to Settings > Accessibility > enable NightDream.
In-App Payments
The current weather conditions can be shown below the time. This feature purchased within the app
The project is open source. If you want to send a donation you can do this via in-app purchase.
Permissions
android.permission.MODIFY_AUDIO_SETTINGS
This permissions allows to siilence the device during the night mode.
android.permission.RECORD_AUDIO
During the night mode the screen may be deactivated. It can be switched on again if a certain ambient noise level is reached. Therefore the app continuously records audio. The app does not store audio data.
android.permission.WAKE_LOCK
The app is allowed to wake the device from sleep in order to enable the screen and to keep the screen on.
android.permission.READ_EXTERNAL_STORAGE
The permission is necessary to read background images from the external storage.
Screen Lock
This app uses the Device Administrator permission. The permission is exclusively used to lock the screen while the app is running. Before uninstalling the app the permission must be revoked.
What’s new
Version 2.11.31 · Updated September 14, 2026
• Improved Background Images: New background service for stable image selection with real-time progress tracking. • Android 16 Support: Fixed screen and layout issues for newer Samsung, Oppo, and OnePlus devices (API 36). • Stability Fixes: Resolved crashes in alarm volume settings and when switching between Radio, Ticker, and Clock views. • UI Tweaks: Refined settings interface for better navigation and safer configuration.
User reviews
Running this on LG G7 One, Android 10. Does exactly what I want, so I am very happy.
Great clock i use it everyday
Does what it promise. I use it on my tablet and now I got a clock on my bedside table. :) No adverts but some functions are locked but still very nice. Thank you for creating this app.
vip
great It could be excellent if i could use it in screen lock without disable autolock
Installed it on my old phone which I use as desk clock. Good big font, and the ability to detect ambient lighting to activate day/night mode makes it perfect. The only suggestion I have is to make the font even bigger! You know, so it will cover all screen from top to bottom. It doesn't matter if the numbers are str...
Frequently asked questions
What does the Day and night clock app do?
The Day and night clock app is a desk clock that is suitable for both day and night. It automatically adjusts its brightness, with the display being bright during the day and dimming to a minimum brightness at night.
Can the Day and night clock app be used as a Daydream?
Yes, the Day and night clock app can be used as a Daydream from Android 4.2 onwards.
How can I set an alarm using the Day and night clock app?
You can set an alarm by swiping from the left in the app. To delete the alarm, simply tap on the lower right corner.
Does the app provide an estimate time until the battery is full while charging?
Yes, the app calculates an estimated time until the battery is full while your mobile device is charging.
How can I enable notifications for missed phone calls, GMail, WhatsApp, and Twitter in the app?
For Android 4.3+, go to Settings > Security > Notification access > enable NightDream. For earlier versions of Android, go to Settings > Accessibility > enable NightDream.
Can the current weather conditions be shown below the time in the app?
Yes, the current weather conditions can be shown below the time. This feature can be purchased within the app.
Is the app open source and can I donate via in-app purchase?
Yes, the app is open source. You can send a donation via in-app purchase if you wish.
What permissions does the app require?
The app requires the following permissions:
Why does the app use the Device Administrator permission?
The app uses the Device Administrator permission exclusively to lock the screen while the app is running. Before uninstalling the app, the permission must be revoked.
Alternatives to Day and night clock
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| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| Day and night clock | 4.2 / 5 | Free | 1,000,000+ | Sep 14, 2026 | |
| Clock Screensaver | 4.4 / 5 | Free | 1,000,000+ | Jun 21, 2026 | Compare |
| The Clock: Alarm Clock & Timer | 4.5 / 5 | Free | 1,000,000+ | Aug 24, 2026 | Compare |
| Alarm Clock with Ringtones | 3.7 / 5 | Free | 1,000,000+ | May 14, 2020 | Compare |
| Galarm - Alarms and Reminders | 4.5 / 5 | Free | 5,000,000+ | Oct 3, 2026 | Compare |