In my previous windows-based smart phone I downloaded a program that gave me a large digital clock on the screen to view. Is there a way to do that with Blackberry. I've found programs that provide a large analog clock, but nothing that provides a large digital clock.

Welcome to the forums.

If you are looking for just a large digital clock, try this : BigClock / free download

other than that, the clock on the home screen is all theme based.

That works ok, I downloaded it, but I have to turn it on for it to work. I really just want something that gives me a larger clock on the current home screen or something that acts more like a screen saver and turns on by itself. I do not wear a watch and prefer a clock that is larger and easily read. But thanks for the suggestion

Haha it seams silly that you have to download a thrid party application just to have a larger clock on your device. I have found nothing in the theme section regarding a larger clock.