digitalclock.now — Large Customisable Digital Clock

More on digitalclock.now

Fullscreen Clock Fullscreen Fill the screen — for a desk monitor, a classroom projector, a lobby display or a stream. Clock with Alarm Alarm A clock and a simple alarm in one tab — set a time and it sounds. Night Mode Clock Night A dim red clock for a dark room — readable at a glance without waking you up.

digitalclock.now is a clock you set up once and leave running. The digital clock takes your format, colour and size and remembers them; fullscreen fills a monitor, projector or lobby screen and keeps it awake; the alarm adds a simple wake-up; and night mode is a dim red bedside display.

Made to be left on

Most online clocks assume you are glancing at them for a second. This one assumes the opposite: that it will sit on a screen for hours. That shapes everything — the wake lock, the dimmable colours, the option to hide seconds, and the saved settings that survive a reload. Our guides cover desktop, classroom, lobby, stream and bedside setups.

From our guides

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How & why 12 Hour vs 24 Hour Display: Which Should Your Clock Show? How the 12-hour and 24-hour formats actually read on screen, where each one goes wrong, and which to choose for a kitchen, a classroom or a control room. 5 min read Setup guides Classroom Clock Displays: Sizing, Contrast and Countdowns How to put a clock on a classroom display that the back row can actually read, with sizing, contrast, the seconds question and pairing the time with a countdown. 6 min read How & why Clock Accessibility: Contrast, Colour and Readable Digits What actually makes a clock readable for everyone: contrast ratios, colour choices that survive colour blindness, size against viewing distance, and less movement. 6 min read Setup guides Clock Overlay for Streaming: Adding the Time to Your Scene How to put the time on a stream: a browser source in OBS Studio, a transparent background, sensible placement, and digits that survive video compression. 5 min read How & why Digital Clock Fonts and the Seven Segment Display Seven bars, ten digits, and a few ambiguities. How segment displays draw numbers, what fonts imitate them, and why numeral width decides whether a clock sits still. 6 min read How & why Digital vs Analog Clock: Which Is Easier to Read? Digits give you the exact time faster; a dial shows you how much time is left. A practical comparison of the two readouts and what each is genuinely better at. 5 min read Setup guides How to Put a Fullscreen Digital Clock on Your Desktop Turn a spare monitor, old laptop or tablet into a large, readable time display with a fullscreen digital clock, and keep it lit and legible all day. 6 min read Setup guides How to Keep Display Awake While a Clock Is Showing Every platform's route to stopping the screen sleeping, what the browser's wake lock can and cannot do, and when leaving a panel lit is a bad idea. 6 min read

Frequently asked questions

Is digitalclock.now free?

Yes — free, no signup, no download, no adverts over the clock.

Can I switch between 12 and 24 hour?

Yes, and the choice is saved in your browser along with the colour, size and whether seconds are shown.

How do I make the clock fullscreen?

Press the fullscreen button under the clock, or open the dedicated fullscreen page which is set up for it.

Will it keep my screen from sleeping?

In fullscreen it requests a screen wake lock where the browser supports it, which keeps a display running unattended.

Does it work offline?

Once the page has loaded it keeps time from your device's own clock, so a dropped connection does not stop it.