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Online Digital Clock

In-browser only Date & Intl APIs Fullscreen mode
F fullscreen · H hide setup · M 12 / 24h
Hour format
Digit style
HH:MM:SS vs HH:MM
Animate the separating colons
Switch the page to dark mode

Runs entirely in your browser — nothing is uploaded.

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Online Digital Clock
Local time
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Related tools View all time tools

Overview

Digital and analog clock modes

Read the current local time in the format that suits you. Switch between a sharp digital readout and a live analog face — all running in your browser.

  • Digital and analog clock modes
  • Fullscreen mode for projectors and second monitors
  • 12 / 24-hour format with optional seconds
  • Sans, mono, and 7-segment digit styles
  • Live tab title and optional keep-awake
  • Time and date are read from your device clock — never a server.
  • Settings stay in this browser via localStorage.
  • Works offline once the page has loaded.
  • No data leaves your device.
  • Projecting the time in a classroom or meeting
  • An always-open clock for a second monitor
  • A bedside or desk clock that does not let the screen sleep
  • Coordinating a session start time at a glance

Guide

How to Use

  1. 1
    Pick a clock mode

    Choose Digital for a numeric readout or Analog for a classic clock face with hour, minute, and second hands.

  2. 2
    Set your display format

    Toggle between 12-hour and 24-hour time, turn seconds on or off, and choose a digit style — Sans, Mono, or Segment.

  3. 3
    Go fullscreen

    Press the fullscreen button or hit F to expand the clock to fill your screen. Use the rail at the bottom to adjust settings without leaving fullscreen.

  4. 4
    Keep the screen on

    Enable the Keep screen awake toggle so your device does not dim or sleep while the clock is displayed. The toggle appears only on supported browsers.

  5. 5
    Copy or share the time

    Click Copy time to write the current time and date to your clipboard. The clock also updates the browser tab title so the time is always visible.

Frequently Asked Questions

How accurate is the clock?
The clock reads directly from your device's system clock and updates once per second. Accuracy depends on your device's clock synchronisation, which is typically within a second of true time.
What's the difference between Digital and Analog modes?
Digital shows a numeric readout with your chosen font style and optional seconds. Analog shows a live clock face with hour, minute, and second hands — the second hand sweeps smoothly by default.
Will the tab title keep updating in the background?
The tab title updates once per second while the browser tab is open. Background tabs may be throttled by the browser, so the title can fall a few seconds behind and catches up when you return.
What is the 7-segment digit style?
The Segment style renders digits in the style of an LED or LCD display, similar to a classic digital alarm clock. Choose it in the Digit style control under the Digital tab.
Are my settings saved between visits?
Yes. Your hour format, digit style, seconds preference, and other settings are saved in your browser via localStorage. They are restored the next time you open the clock.
Why doesn't the "keep screen awake" toggle appear?
The Screen Wake Lock API is not supported in all browsers. If the toggle is absent, your browser does not support this feature. It works in recent versions of Chrome and Edge.