Below parameter consist in this plugin
Once you installed the plugin you will get message of how to use those parameter into content.
I actually needed to just show the hour and minute (and not the seconds) - a simple chat to the developer and within 5 minutes I had my request completed! Brilliant plugin! - Brilliant support!!
It would be nice to see this resolved before I can add it to other sites. Also you are unable to change the size of the clock and the colours which is also strange.
Other than that, it is nice.