Use an old device as an adhan clock

An old tablet, phone, laptop or TV with a browser can show Adhan Clock all day and play the adhan at each prayer. Each part below is done once. Every device setting links to the maker's own help page.

Setting up a TV or screen for a masjid, school or home? Make a setup link and QR code on your phone, open it on the screen, and the clock starts with your place and choices. No typing with a remote.

In Adhan Clock

These work the same on every device. Open the clock, tap the screen, then the gear for Settings.

Set your location and adhan once. Everything is kept on the device and the prayer times are worked out on the device, so the clock keeps going when the Wi-Fi drops.
Turn on Dedicated display (below) if the device will show nothing but the clock.
Install the clock as an app where your browser offers it, so it opens full screen without the address bar.
On an older device, choose the Old School face (below).

Two faces: New School and Old School

New School is the living sky that follows the sun, with the next prayer in a ring. Old School is the masjid wall board: large LED digits on a dark panel in a wood, metal or marble frame, the six times in a row, and a notice line with the day's verse. Same times, same adhan; only the face changes. Old School is the better choice for an old tablet: it has no moving sky, its digits are the largest, and it is built to run on older browsers. We have not yet tested it on a real old iPad or Android tablet, so check it on yours.

To switch, any one of these. The device remembers its face after a restart.

Tap the screen, tap the gear, scroll to Display, choose Clock face: Old School. There you also pick the LED colour (amber, red or green), the frame and an analog dial.
Tap the screen and tap the face button (a small dial beside a board) at the top.
With a keyboard or a remote that types letters, press M.
Open adhantv.live/?face=old. Use this address as the start page in Fully Kiosk Browser or a kiosk shortcut, and the device always opens on the board.

In light mode the board becomes an LCD desk clock: dark digits on a pale panel. At night it dims like the rest of the clock.

The Dedicated display switch

For a tablet, phone, laptop or TV that hangs on the wall and shows only the clock. To turn it on: tap the screen, tap the gear, scroll to Display, tick Dedicated display, then tap Done. It is saved on the device and stays on after a restart. Turning it on also turns on Dim at night; you can turn that off again on its own.

What it does	Why
Keeps the screen on. It asks the browser for a screen wake lock as soon as the page opens. The footer says Screen stays on or Screen may sleep.	Some browsers do not allow it (see your device below), so set the device's own sleep setting too.
Moves the clock a few pixels. Every 3 minutes the whole face shifts by up to 6 pixels along a slow loop.	Reduces how long an edge stays on the same pixels. This does not guarantee protection against burn-in.
Dims at night. Between Isha and Fajr the screen darkens. A tap brightens it for a moment.	Less light in the room at night and less wear on the screen.
Reloads once a day. After 20 hours it reloads itself, but never while an adhan plays and never within 20 minutes of a prayer time.	Picks up app updates and clears memory a page collects over days.
Shows a large Tap to allow the adhan to play card after any reload, restart or power cut, until someone taps it once.	Browsers play sound only after a tap. One tap brings the adhan back.

Old iPad or iPhone

Which versions work

The page can keep the screen on in Safari from iOS and iPadOS 16.4 (WebKit, Safari 16.4), and inside a Home Screen web app from 18.4 (WebKit, Safari 18.4).
The oldest devices that run iOS or iPadOS 16: iPhone 8 / 8 Plus, iPhone X and later, iPhone SE (2nd and 3rd gen); iPad (5th gen) and iPad Pro 9.7-inch and later. iPad Air 2 is not on the iPadOS 16 list (Apple, iPadOS 16 compatible models). iPhone 8, iPhone X, iPad (5th gen) and iPad Pro 9.7-inch stop at 16: they are not on the iOS 17 or iPadOS 17 lists.

What this means:

iOS/iPadOS 18.4 or later: best. Use it as a Home Screen app and the screen-on lock works.
16.4 to 18.3: run the clock in Safari itself (not from the Home Screen icon) so the screen-on lock works, and set Auto-Lock as below.
Below 16.4 (for example iPad Air 2): the page cannot keep the screen on. Auto-Lock and Guided Access still help. Unverified: to confirm on your device: whether the app loads at all on these versions. We have not tested any Safari version yet. The oldest supported Safari version remains unverified; wake-lock support alone does not establish app compatibility.

Add the clock to the Home Screen as an app

Apple's steps for iOS 26 (Apple, WebKit, Safari 26):

Open Safari and go to adhantv.live. Finish setup and tap Start the clock and allow sound.
Tap the page menu (or More), then Share, then Add to Home Screen. If you do not see it, tap Edit Actions and add it.
Make sure Open as Web App is on, then tap Add.

On older iOS, and on iPad: the menu names may differ. Unverified: to confirm on your device. Apple's iPad steps were not checked separately.

Keep the device on the clock: Guided Access

From Apple: Use Guided Access:

Settings > Accessibility > Guided Access, turn it on.
Tap Passcode Settings and set a Guided Access passcode (you will also be asked to create one when you start, if none exists).
In the same screen, Display Auto-Lock sets how long before the screen locks during Guided Access. Set the longest option. (Apple's iPad guide says Guided Access turns Auto-Lock off while active; check the option on your device.)
Open the Adhan Clock, then triple-click the side button (the top button on iPad). On models with a Home button, which button to triple-click: unverified: to confirm on your device. If a shortcut menu appears, tap Guided Access.
Optional: tap Options and leave Touch on (you need touch for the Tap to allow card and the test button). Leave Time Limit off.
Tap Start.
To end: triple-click the same button, enter the passcode (or Face ID / Touch ID), tap End.

Screen never sleeps: Auto-Lock

Settings > Display & Brightness > Auto-Lock, then choose a length of time (Apple, iPhone, Apple, iPad). Choose Never if your device lists it. Apple notes a longer time uses more power.

Unverified: to confirm on your device: the Never choice. Apple's page says only choose a length of time. It may be hidden in Low Power Mode or on a managed device.

Do Not Disturb and Focus

Do Not Disturb silences calls, alerts, and notifications (Apple). On a dedicated clock you probably want it on, so no other alerts pop up:

Open Control Center, tap Focus, tap Do Not Disturb.
To let something through: Settings > Focus > Do Not Disturb, then under Allow Notifications From tap Add People or Add Apps (Apple).

The adhan is audio played by the page, not a notification. Unverified: to confirm on your device: that the adhan still plays with Focus on. Apple does not say whether Focus affects media playback. Use the test button with Focus on.

Volume and the silent switch

From Apple: silent mode and Apple: silence iPhone:

iPhone 15 and earlier: the Ring/Silent switch on the side. Orange showing means Silent.
iPhone 15 Pro and later models with an Action button: the Action button turns Silent mode on or off by default; also Settings > Sounds & Haptics > Silent Mode.
Apple says audio apps such as Music still play in Silent mode, and the volume buttons control media volume while something is playing.

Unverified: to confirm on your device: that the adhan from Safari or a Home Screen web app plays with Silent on. Apple's wording covers audio apps, not websites. Safest: turn Silent off on the clock device, tap the test button, and set volume with the side buttons while it plays. On iPhone and iPad the in-app volume slider is ignored; volume follows the device buttons.

Battery: Optimized Battery Charging and the 80% limit

From Apple: iPhone battery and charging and Apple: iPad battery:

iPhone 15 and later: Settings > Battery > Charging, then choose a limit from 80% to 100% in 5% steps. Choose 80%. (Optimized Battery Charging applies only when the limit is 100%.)
iPhone 14 and earlier: Settings > Battery > Battery Health & Charging, turn on Optimized Battery Charging. There is no fixed limit on these models.
iPad Pro (M4) and later, iPad Air (M2) and later, iPad mini (A17 Pro), iPad (A16): Settings > Battery > Battery Health, turn on 80% Limit. Charging resumes at 75%. Allow Until Tomorrow overrides it until 6:00 a.m.
Older iPads: Apple lists no charge limit. See Power for safe always-on power.

Old Android phone or tablet, Fire tablet

Install the clock as an app (Chrome)

From Google Chrome Help:

Open Chrome, go to adhantv.live, finish setup and tap Start the clock and allow sound.
Tap More (three dots, right of the address bar), then Install and create shortcut, then Install.
Open the clock from its new icon.

Why install it: Chrome's autoplay policy lets a site play sound when, on mobile, the user has added the site to their home screen (Chrome autoplay policy). Unverified: to confirm on your device: whether this removes the tap after a reload in practice. We have not tested it.

Keep the device on the clock: App pinning (free, built in)

From Google Android Help: pin screens:

Settings > Security (or Security & location) > Advanced > App pinning, turn it on. Turn on asking for a PIN, pattern or password before unpinning.
Open the clock. Swipe up to the middle of the screen and hold, tap the clock's icon at the top, tap Pin.
To unpin: with gesture navigation, swipe up and hold; with 2-button navigation, hold Back and Home; with 3-button navigation, hold Back and Overview.

Google notes some steps work only on Android 11 and up on Pixel phones.

Or: Fully Kiosk Browser (more control)

From fully-kiosk.com, feature list, PLUS licence, downloads:

Free features include Autostart on boot, Keep screen on (with brightness and orientation) and Autoplay HTML5 video/audio.
Kiosk Mode, motion detection, screen off on idle, a sleep/wake schedule and the screensaver are PLUS features. All PLUS features can be tried free; the licence (EUR 8.90 / US$10.99 plus tax per device, one-time) removes the watermark and reminders.
Get it from Google Play or as an APK from the downloads page.

Steps: install, set the Start URL to adhantv.live, turn on Autostart on boot, Keep screen on and Autoplay audio, then (PLUS) Kiosk Mode. Exact menu names inside Fully: unverified: to confirm on your device.

Stay awake while charging (Developer options)

From Android Developers: developer options (Android 4.2 and later):

Settings > About phone > Build number (Samsung: Settings > About phone > Software information > Build number).
Tap Build number seven times until you see You are now a developer!.
Go back. Developer options is now at the bottom of the previous screen.
Turn on Stay awake: sets your screen to stay on while the device is plugged in.

Also set the normal screen timeout to its longest value. On Pixel: Settings > Display & touch > Screen timeout (Pixel Help). Unverified: to confirm on your device: the path on other brands, and whether a Never option exists. Google lists neither.

Battery optimisation off for the browser

Pixel: Settings > Apps > See all apps > Chrome (or the installed clock) > App battery usage, turn on Allow background usage (Pixel Help; some steps Android 14 and up). Google warns this uses more battery.
Samsung: Settings > Battery and device care > Battery > Background usage limits > Never sleeping apps, add Chrome (Samsung).
Samsung's per-app Unrestricted option: unverified: to confirm on your device.

Charge limit where offered

Pixel 6a and later: Settings > Battery > Battery health > Charging optimization, turn on Use charging optimization, choose Limit to 80% (Pixel Help). Google says the phone charges to full about every 10th cycle to recalibrate.
Pixel 3 and later, Android 11+: after several days on the charger the phone limits itself to about 70 to 80% and shows Protecting your battery (Pixel Help). No action needed.
Samsung One UI 6.1 and later: Settings > Battery > Battery protection, turn it on, choose Maximum (stops at 80%) (Samsung).
Samsung before One UI 6.1: Samsung says the only option is an 85% limit (Protect battery). The menu path: unverified: to confirm on your device.

Starting again after a power loss

If the battery never runs flat, the device stays on through a power cut and the clock keeps running (it works offline).
If the battery runs flat, most phones stay off. Google says: If you see a battery icon, your phone is powered off and is charging; you restart it with the Power button (Android Help). Automatic power-on when the charger returns is not documented by Google, Samsung or Amazon: unverified: to confirm on your device.
After it powers on, Fully Kiosk's Autostart on boot reopens the clock. Then tap once to allow sound.

Fire tablets (Fire OS)

No Google Play or Chrome officially. Amazon says Google Play services isn't supported on Fire OS; apps come from the Amazon Appstore (Amazon Developer). Use the built-in Silk browser.
Developer options: Settings > Device Options > About Fire Tablet, tap Serial Number seven times; Developer Options appears under Device Options (Amazon Developer). Then look for Stay awake as above (the option name on Fire: unverified: to confirm on your device).
Unverified: to confirm on your device (Amazon's help pages could not be read when this was checked): Silk Add to Home screen; the screen timeout options and whether Never exists; Show Mode and which models have it; any battery charge limit; whether Fully Kiosk installs from the Amazon Appstore or only as an APK.

Old laptop or Chromebook, TV with a browser, Chromecast with Google TV

Windows laptop or PC

Install the clock as an app. Edge: Settings and more (...) > More tools > Apps > Install this site as an app (Microsoft). Chrome: More > Cast, save, and share > Install page as app... (Google). Chrome allows sound without a tap for a PWA the user installed on desktop (Chrome autoplay policy).
Start it at sign-in. In Edge go to edge://apps, open the clock's Details, turn on Auto-start on device login (Microsoft). Or Start > Settings > Apps > Startup and turn the app on; or press Win+R, run shell:startup and put a shortcut there (Microsoft).
Full-screen kiosk (optional). Edge's documented command line (Microsoft Learn, Edge 87+): msedge.exe --kiosk https://adhantv.live --edge-kiosk-type=fullscreen --no-first-run Put that in a shortcut in the Startup folder. Windows Pro, Enterprise, Education also have Assigned access: search Settings for kiosk, Set up a kiosk (assigned access) > Get started, choose Microsoft Edge; the kiosk app restarts if closed. Not available on Windows Home (Microsoft Learn).
Sleep off (Windows 11). Start > Settings > System > Power & battery > Screen, sleep, & hibernate timeouts, set Turn my screen off after and Make my device sleep after to the longest value (Never) when plugged in (Microsoft). Unverified: to confirm on your device: the Never label (not on Microsoft's page) and the Windows 10 path (Power & sleep).

Chrome's own --kiosk flag is not officially supported by the Chromium team (Chromium issue): unverified: to confirm on your device. Prefer Edge's documented kiosk mode.

Mac

Install as an app (macOS Sonoma 14+): in Safari, File > Add to Dock (Apple). Open it and click the green button, Full Screen (Apple).
Open at login: System Settings > General > Login Items & Extensions, click Add, choose the clock app (Apple).
Display and sleep: System Settings > Lock Screen, set Turn display off on power adapter when inactive to the longest value. Desktop Macs: Energy, turn on Prevent automatic sleeping when the display is off; Mac laptops: Battery > Options > Prevent automatic sleeping on power adapter when the display is off (Apple). Never as a value: unverified: to confirm on your device.
After a power cut: Mac mini and iMac (2024 and later) and Mac Studio (2025 and later) on macOS 26.5+: System Settings > Energy > Start up when power is connected > Always (Apple). Older Macs' Start up automatically after a power failure: unverified: to confirm on your device.

Chromebook

Install: in Chrome, More > Cast, save, and share > Install page as app... (Google).
Keep display on: click the time, Settings > System preferences > Power, set While inactive and plugged in to Keep display on (Chromebook Help).
Kiosk: real kiosk mode needs a managed Chromebook (Admin console Devices > Chrome > Apps & extensions > Kiosks) (Chrome Enterprise Help). Which licence: unverified: to confirm. For a home Chromebook, use the installed app maximised (Alt + =, Chromebook shortcuts); the full-screen key: unverified: to confirm on your device.

Chromecast with Google TV and TVs with a browser

Chromecast with Google TV: Google does not document a built-in web browser: unverified: to confirm on your device. What Google does document: from Chrome on a laptop, More > Cast, save, and share > Cast..., choose the Chromecast (Chromecast Help). The laptop must stay on and play the sound itself.
Google TV screensaver: Settings > System > Ambient mode > Settings > Source changes it (Google TV Help). Turning it off, and any Energy saver display-off timer on the streamer: unverified: to confirm on your device. Google TVs with a presence sensor: System > Power & Energy > Shut-Off Timer (Google TV Help).
Smart TV browsers (Samsung, LG and others): the browser, its screensaver and auto power-off: unverified: to confirm on your device. Samsung's UK page says TVs switch off after 4 hours with no input by default (Samsung UK). TVs are a poor fit for always-on use: high power draw, and many switch themselves off.

Power, always on and safe

Charger and cable. Use the charger that came with the device or a reputable certified one. Google recommends charging Pixels with a compatible USB-C PD or PPS charger at about 25 °C (Pixel Help). Replace frayed or hot cables.
Keep the battery between limits. Turn on the charge limit your device offers (see iPad and iPhone, Android). Laptops: Surface Surface app > Battery & charging > Charging mode > Limit to 80% (Microsoft); Mac laptops System Settings > Battery > Info (next to Charging) > Optimized Battery Charging or Charge Limit (Apple).
Heat. Apple: ideal ambient temperature 16 to 22 °C, avoid using or charging above 35 °C (Apple). Microsoft: use between 0 and 35 °C, out of sun and hot cars (Microsoft). Do not mount the device above a radiator, in a sunny window or in a closed cabinet. Take any case off.
A swollen battery is a fire risk: stop at once. A bulging back, a lifting screen, a gap in the case or a device that no longer lies flat means a swollen battery. Never leave a swollen device on charge. Unplug it, stop using it, do not press, pry or puncture it, and take it to a repair shop or battery recycling point; never household waste (Pixel Help, Microsoft). Check the device by eye once a month.
Smart plug schedule (option). A smart plug can cut charging for part of the day so the battery cycles instead of sitting full, for devices without a charge limit. The device runs on battery while the plug is off, so the clock keeps going. Keep the off period short enough that the battery never runs flat. This is a general option, not a vendor feature; any smart plug with a schedule works.
After a power cut: with battery left, nothing stops: the clock keeps running offline. If the browser reloads or the device restarts, the clock shows Tap to allow the adhan to play: tap it once. With Dedicated display on, this is the large card. An adhan more than 2 minutes late is skipped, not played late.
Wi-Fi drops: nothing to do. Times are worked out on the device, and the clock and the adhans you chose work offline after the first load.

Screen care

Burn-in: OLED screens can keep a faint image of things shown for a long time. OLED iPhones: iPhone X, XS / XS Max and iPhone 11 Pro and later; the only OLED iPad is iPad Pro (M4 and M5) (Apple, Apple). Apple: avoid static images at maximum brightness for long periods; Auto-Brightness helps. Google (Pixel): keep the default brightness or lower, and don't install apps that promise to reduce burn-in (Pixel Help). Samsung phone AMOLED guidance: unverified: to confirm. An LCD device (most older iPads and cheap tablets) is the better choice for an always-on clock.
What the clock does: Dedicated display moves the clock slightly every few minutes, and Dim at night lowers the brightness between Isha and Fajr.

Brightness by time of day

iPhone and iPad: Settings > Accessibility > Display & Text Size > Auto-Brightness on (Apple). Settings > Display & Brightness > Night Shift > Scheduled, Sunset to Sunrise warms the screen at night (Apple).
Pixel: Settings > Display & touch, turn on Adaptive brightness; Dark theme > Schedule from sunset to sunrise or at bedtime (Android 13+) (Pixel Help, Pixel Help).
Use the clock's Dim at night for bedrooms.

Sound

A tablet speaker is thin. A small speaker gives a fuller adhan.

Wired: plug into the headphone jack or a USB-C audio adapter. No settings needed.
Bluetooth, iPhone/iPad: put the speaker in pairing mode, Settings > Bluetooth, turn it on, find the speaker under My Devices and tap its name, enter a PIN if asked (Apple). AirPlay speakers: Control Center > AirPlay icon, choose the speaker (Apple).
Bluetooth, Android: swipe down, touch and hold Bluetooth, tap Pair new device, tap the speaker (Android Help).
Bluetooth, Windows 11: taskbar network/sound/battery icon, Manage Bluetooth devices, choose the speaker under New devices. Windows 10: Start > Settings > Devices > Bluetooth & other devices > Add Bluetooth or other device > Bluetooth (Microsoft).
Bluetooth, Mac: System Settings > Bluetooth, hover over the speaker, Connect (Apple). Chromebook: click the time, Bluetooth, + Pair new device (Chromebook Help).

Then press Test in Settings, Adhan. Do this after pairing, after every restart, and with Focus, Silent or Do Not Disturb set the way you will leave them. Many Bluetooth speakers switch themselves off when idle; if yours does, use a wired speaker or a mains-powered one with auto-off disabled (speaker menus vary: unverified: to confirm on your speaker).

Mounting

No product recommendations; any of these work:

Desk or shelf stand: a tablet stand angled so the screen faces the room at eye level.
Wall mount: an adhesive or screw-fixed tablet holder. Leave space behind for air. Choose a wall near a socket so the cable runs straight down, and away from direct sun and heaters.
Cable: a right-angle cable reduces strain on the charging port. Fix the cable to the wall so it cannot be pulled.
Landscape suits the clock layout best. Lock rotation if the device has the option.
Keep the speaker and the device within easy reach for the one tap after a restart.

Every device setting above was checked against the maker's own help page on 23 October 2026. Where we could not find a setting in the maker's documentation it is marked unverified: to confirm on your device: it may well exist on your device, as menu names vary by model and version. Check before relying on it. Adhan Clock has not been tested on a real iPad, iPhone, Fire tablet or TV browser yet.