Date without year [Rule Machine]

In RM I want to find out the day of the week for a specific date. I really want to enter just the month and the date without the year, so it can be used every year. I see that I can calculate the date difference with the full date including the year.
Just want to set it up once and leave it alone.

I'm a little confused. You want to calculate the day of the week knowing the month and date regardless of the year? If that is so, the day of week varies with the year.

I'd like to get the day of the week for a particular date in the current year.

First get year of current date then use it.
Check out: https://raw.githubusercontent.com/jshimota01/hubitat/main/Drivers/datetime_parser/dateTimeParser.groovy