@erm47, welcome to Keyboard Maestro (KM) and its Forum.
KM is one of the best Mac automation tools available, its Forum is one of the best and friendliest forums on the Internet. Whenever you reach a tough stumbling block trying to use KM, please feel free to post your question/problem here for help.
As you say, this is a very simple macro, once that you can easily create.
It is best for you to create it, since different users may like different date formats.
See Date From Typed String Macro for a comprehensive solution. In your case, you'd type any of the triggers available followed by td for today in the format of your preference. So you'd get May 2, 2020 when you type a comma followed by td for today.
Thanks for your prompt response, Mr. Pasini. Sorry I had to bother the “forum” with this but my masters degree is not doing me much good in figuring out KM tricks. The macros I’ve created have been mostly by hit-and-miss followed by extensive trial and error.
Way too much “goo” to read; too many options. It’s supposed to save us time, but the learning curve is though-the-roof. At least for me.
The macro/action you want really is simple. If KM is just not "clicking" for you, let me know and I'll give you a PhD in KM (just kidding!!!). Really, if you don't quickly figure it out, post back and I'll help.
OK, here's the first lesson: How to Insert a Token into an Action: