I would like to know about dynamic countdown script.

Hello fellows,
I would like to know about dynamic countdown script. I need a timer countdown for a specific website or any Java or visual basic programming language. What would be the easiest way to create a countdown timer using scripts? I need some of your advice; I have to choose first before I begin. This is for our company system; we need a countdown timer for the upcoming events.
Regards,
Isabella Barry.
