To diplay todays date:

Markup Text	Displayed as
Today is !today.	Today is 24 Apr, 2024.
XML is !today -xml.	XML is 2024-04-24T20:27:17.
Right now it is !today -t.	Right now it is 24 Apr, 2024 20:27.
Tomorrow is !today +1.	Tomorrow is 25 Apr, 2024.
Last week was !today -7.	Last week was 17 Apr, 2024.
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.)