I have what may be a dumb question around ex-dividend dates....

I have what may be a dumb question around ex-dividend dates. However I want to make sure I have it right :)

If a company makes announcement on upcoming dividend dates, using BHP as an example, they have the 2013 interim dividend on the ASX set at 4th of march.

http://www.bhpbilliton.com/home/investors/shareholderinfo/pages/dividends.aspx

Does that mean that if I hold shares after trading closes on the ASX on the 4th March, I will recieve a dividend payment from them, no matter if I sell my shares the following day, the 5th March or anytime later?

Apolgies if this is not the right forum to post a question like this.

Thanks