ONLINECLOCK.NET
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Ambient scenes · no downloads

Clock Background Themes

Animated scenes behind a large digital clock, for a second monitor, a projector, a television or a quiet corner of a room. Every one is drawn in the browser, so nothing loads and nothing buffers.

No video files Silent Full screen Motion can be paused
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Pick a scene below and the same clock appears in front of it.

The gallery

Every Background

Each preview is the real scene running at a small size, so what you see here is what fills the screen.

Daylight

Clouds

A bright blue sky with cumulus drifting slowly across it.

Ambient

City Skyline

A night city with windows flickering across the towers.

Calm

Forest

Dark trunks at dusk with fireflies drifting between them.

Space

Galaxy

Nebula clouds turning slowly behind a deep field of stars.

Daylight

Ocean Waves

Rolling swell breaking towards sand, with gulls overhead.

Weather

Thunderstorm

Heavy rain under low cloud, cut by lightning.

Abstract

Gradient Flow

Soft blobs of colour drifting and blending. No subject at all.

Warm

Lanterns

Paper lanterns rising through a night sky over still water.

Ambient

Aquarium

Drifting fish, rising bubbles and soft blue light.

Ambient

Rain

Falling rain with a distant flash of lightning.

Warm

Fireplace

Flickering flames and rising embers.

Ambient

Ceiling Fan

A slowly turning fan at three speeds.

Low motion

Nature

Layered hills, drifting mist and a slow sun.

Cool

Water

Expanding ripples and shifting surface light.

Retro

Lava Lamp

Slow blobs rising and falling in a warm glow.

Countdown

Christmas

Snowfall, string lights and a countdown to 25 December.

Countdown

Halloween

Moonlight, bats, fog and a countdown to 31 October.

Countdown

Fall

Drifting leaves and a countdown to the equinox.

Very dark

Starfield

A deep field of stars with the occasional meteor.

Winter

Snowfall

Steady snow over a drifted horizon, no decorations.

Warm

Sunset

A sun sinking into the sea under a banded sky.

Very dark

Matrix

Columns of green characters falling down a black screen.

Low motion

Aurora

Slow curtains of green and violet over a starlit ridge.

Soft colour

Sakura

Cherry blossom petals tumbling under a pale moon.

High colour

Neon Grid

A striped sun over an endless glowing retro grid.

Soft colour

Bokeh

Drifting circles of out-of-focus colour.

Warm

Candle

One candle burning in the dark with a soft halo.

Countdown

Fireworks

Colour bursts over a skyline, counting to New Year.

Countdown

Valentine

Rising hearts and a countdown to 14 February.

Countdown

Thanksgiving

Autumn leaves and a countdown to the fourth Thursday.

Choosing one

Which Background for Which Room

WherePickWhy
Beside your work, on a second screenNature, fanAlmost no movement, so it will not pull your eye mid-sentence
A living room televisionFireplace, aquariumSomething for a room to look at, with a clock readable from the sofa
A waiting area or receptionAquarium, waterCalm, impersonal and pleasant to glance at repeatedly
Late evening, low lightFireplace, lava lampWarm colours with very little blue light
A warm room in summerWater, rainCool tones read as cooler, which is perceptual but reliable
A classroom in DecemberChristmasThe countdown is a talking point and the clock still works
Study or focused readingRain, natureSteady, low-information backgrounds that fade out of awareness
A party or event screenHalloween, lava lampEnough happening to be worth looking at

How they work

Why There Are No Video Files

Every scene here is built from gradients, borders and CSS keyframes. That decision has consequences worth explaining.

Nothing to Load

A looping ambient video is typically five to fifty megabytes. These scenes add a few kilobytes to a page you have already loaded, so they start instantly even on a slow connection and cost nothing on a metered one.

No Visible Loop

Video loops give themselves away because the seam repeats. Here each element runs on its own duration and delay, and because those do not divide evenly into one another the combined pattern takes a very long time to come back round.

Sharp at Any Size

Vector shapes and gradients scale cleanly from a phone to a projector. A video encoded for one resolution has to be stretched for anything larger, and it shows.

Answers

Background Questions

File sizes, motion, sound, battery and the seasonal countdowns.

Are these videos or images?

Neither. Every scene is drawn with CSS gradients and animation, which means there is nothing to download, nothing to buffer, and the whole page weighs a few kilobytes rather than the several megabytes a looping video would need. They also stay sharp at any screen size, because there are no pixels to stretch.

Which one should I use while working?

Something with as little motion as possible. Nature is the quietest, followed by the fan and the lava lamp. Rain, snow and falling leaves have movement across the whole screen, which is fine on a second monitor but distracting directly in front of you.

Can I stop the animation?

Every scene has a pause button that freezes the motion while keeping the colours. If your operating system is set to reduce motion, the scene starts paused without you asking.

Do any of them have sound?

No. All scenes are silent on purpose, so they sit alongside your own music or an ambient sound app without two things competing. It also means one will not surprise a quiet room.

Will they drain my laptop battery?

Continuous animation always costs some power, though far less than video playback. Pausing the motion leaves you with a still coloured background that costs almost nothing.

Can I use one as a screensaver?

Put the browser in full screen and turn off the system screensaver. It is not a true screensaver, so on an OLED panel it is worth avoiding many hours with the clock fixed in one position.

Which ones have a countdown?

Christmas counts to 25 December, Halloween to 31 October and Fall to the September equinox. All three roll over to the following year automatically and use your own time zone. For any other date, the countdown timer takes a custom target.