How can I add a JavaScript countdown timer on my Web page?

Dave, being a new web developer I would like to know how I can code for a numeric value to decrease by 1 every 24 hours based on the local time function.

Specifically, we are trying to create a reminder for our employees of an upcoming DoD audit in the facility. The count down will represent the number of days remaining before it’s conducted. So what I need to do is begin with a date
and start the countdown from there. What is the code that I should use?

This is an obvious situation where JavaScript is going to be your friend, and it turns out that this is a straightforward application of JavaScript so it should be fairly easy.

The key is to realize that JavaScript is a so-called object oriented programming language and that it has a specific date object with “methods” that let you set and extract specific values. But, really, this task is even easier than that, because all we need to do is set a specific target date in the future, get the current date, then calculate the amount of time between them and divide it out so that we end up with days as the value.

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