Following the style of “VCDX Timer” by Andrew Mitchell, I have created the same for NPX Candidates wanting to perform mock panel defences with the NPX Certification Program. Many thanks to Andrew who has graciously allowed me to use his HTML/CSS code as a base template.
Just download the zip file, decompress and double click the NPX_Timer.html file.
The Public version of the timer is available at NPXtimer.com, thank you to Nikolay Nikolov for hosting it!
vcdx133.com 
Hi Rene,
I’ve uploaded the timer to npxtimer.com I will keep the content the same as in the zip. Just let me know if you want me to change anything.
Thanks!
Nikolay, Kudos to you. Thank you very much! Cheers, Rene.