This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Doomsday Clock


Embed a live Doomsday clock on your WordPress website using a widget or a Shortcode. The clock will always display the current time according to the Bulletin of Atomic Scientists.

You can choose between the modern (c2012) style clock, and the classic 1947 style clock. You can change the colour of the clock using the widget or the shortcode.

3rd Party Services

The plugin reads the current time from the 3rd party service:

The Terms of Service for the above website can be found here.


We don’t want donations, but if you enjoy the plugin, please consider donating to the Bulletin of the Atomic Scientists.


  • The customisable widget


  1. Find the plugin in the list at the backend and click to install it. Or, upload the ZIP file through the admin backend. Or, upload the unzipped tag-groups folder to the /wp-content/plugins/ directory.

  2. Activate the plugin through the ‘Plugins’ menu in WordPress.


How do I use the clock?

The clock can be inserted into your site using a widget or a Shortcode

How do I customise the clock?

The clock can be customised in the widget or by using the Shortcode. The parameters for the shortcode are:

text=true or false (displays the time in text below the clock)
design=modern or classic (modern or 1947 style clock)
colour=#e1e1e1 (any hexadecimal colour code)
Example code: [doomsday text=true design=classic colour=#e1e1e1]


May 13, 2019
Looks good in original black. There have been more than two styles of clock over the years so it would be good to see more of them in future updates.
April 24, 2019
The Doomsday clock is an important symbol of the fragility of our existence. In some ways, having this as WordPress plugin is quite amusing, after all, the clock doesn’t update for years sometimes. However, I appreciate that it’s raising awareness. The plugin is easy to use and having the two styles of clock is a nice addition.
Read all 3 reviews

Contributors & Developers

“Doomsday Clock” is open source software. The following people have contributed to this plugin.


Translate “Doomsday Clock” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.


This is the first version