About Install

Super useful classic and stylish Chrome extension to add world clock of your choice, and keep up to date with time of any place!

A productivity booster classic world clock Google Chrome extension!

Installation and Setup guide

If you feel that this extension

  • makes you more productive at work or
  • make your browser look awesome or
  • maybe just simplifies your life or
  • helps you in some or other way

then please consider

  • to support me with a contribution
  • to give Classic World Clocks a 5-star rating here

Thanks for your help!


  • All settings are kept in sync.
  • Add, Remove, SORT, Edit time zones.
  • Very easy to use.
  • Responsive layout.
  • Eye catching add/remove animation for better user experience
  • Select the colour theme from available presets.
  • Set your own color for the individual clock.
  • Local user's time will be available in tab as well.
  • Select 12 or 24-hour format.
  • Turn on/off seconds display.
  • Change the display name after adding the clock.


    v 2.2
  • Note able to drag at the end bug solved
  • Code refactoring
  • Thank you page message updated
  • Credits link added
    v 2.1
  • Don't show sort and delete icon for last clock remaining while deleting
  • Thank you page added after installation
  • Feedback form added after uninstallation
    v 2.0
  • Turn on/off seconds display
    v 1.9
  • Items can be rearranged now by drag and drop Add timezone animation
  • added Delete buttons not showing up on first load bug fixed Logic
  • and UI updates
    v 1.8
  • Remove timezone animation added Can't add duplicated timezones
  • Default 4 time zones added on first load
    v 1.7
  • UI updates code refactored bugs solved credits link added support
  • button added
    v 1.6
  • New Add button and Edit Button Layout. Don't show am/pm in 24hr format
  • Stop user from adding invalid Time Zone.
    v 1.5
  • Not able to create more than 5 clocks bug solved
    v 1.4
  • CSS/Style updates.
  • Select 12 or 24 hour format.
  • Change display name after adding clock.
    v 1.3
  • CSS styles updated
    v 1.2
  • Select 12 or 24 hour format
  • Using vanila Javascript
    v 1.1
  • Bugs removed
  • Screenshots added
    v 1.0
  • Initial release

Try it now! Install