Adding current time and date to a slide not a footer

We are running an impress presentation that will basically be rolling all day. I want to have a slide that says today’s date and the current time. However, I have only found some footer option that I don’t want.

I also saw there is a hotkey to place the date and time in the slide but you can’t change the font, size, color, etc and the time doesn’t update while the presentation is going.

I never knew just having a slide with the time would be so difficult. Does anyone how to do what I want or is it not even possible?