To diplay todays date:

Markup Text
Displayed as
Today is !today. Today is 11 Apr, 2021.
XML is !today -xml. XML is 2021-04-11T21:33:16.
Right now it is !today -t. Right now it is 11 Apr, 2021 21:33.
Tomorrow is !today +1. Tomorrow is 12 Apr, 2021.
Last week was !today -7. Last week was 04 Apr, 2021.
The month is !today (MMM). The month is Apr.

As you can see, you can add or subtract days. You can include the time tiwh -t. And you can use your own format for the time. (See SimpleDataFormat for the syntax.)