Monday marks the nation's observance of Martin Luther King, Jr's birthday.
King’s actual birthday is Tuesday, Jan. 15 – he would have been 84 this year – but the official holiday is always celebrated on the third Monday of January.
It is also a postal holiday, which means there is no regular mail delivery/pickup or retail services.
School districts are closed.
An interfaith prayer service and concert entitled "Shelter Me, O God" is scheduled for 2 p.m. at the Suffolk Y Jewish Community Center. The service will include prayers and scripture readings from various denominations.
Government offices are closed and services, including trash pickup, curtailed. Many businesses are closed, as well.
While the Huntington Public Library will be closed, South Huntington will be open and running a winter reading carnival.
The Long Island Rail Road will operate on a Holiday Schedule. There will be 37 extra eastbound and westbound trains, to and from Penn Station, added on various branches to accommodate holiday travelers. Off-peak fares will also be in effect all day.