To diplay todays date:

Markup Text
Displayed as
Today is !today. Today is 30 Sep, 2023.
XML is !today -xml. XML is 2023-09-30T12:47:09.
Right now it is !today -t. Right now it is 30 Sep, 2023 12:47.
Tomorrow is !today +1. Tomorrow is 01 Oct, 2023.
Last week was !today -7. Last week was 23 Sep, 2023.
The month is !today (MMM). The month is Sep.

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