Monday is Martin Luther King Jr. Day, and many workers will have the day off. Check what's open and closed for the federal holiday.

Federal courts will be closed on Monday; some packages will be delivered All federal and state courts and non-essential services will be closed on MLK Day. All United States Postal Service ...

Before you do, take a look at which facilities plan to be closed for the holiday. Martin Luther King Jr. Day is always the third Monday in January. This year, that falls on Monday, Jan. 20.