The U.S. Postal Service is closing all post office locations and suspending regular mail delivery Thursday for former President Jimmy Carter's national day of mourning.The big picture: Financial markets,

In observance of the national day of mourning in honor of former President Jimmy Carter, the United States Postal Service will be closed and not delivering mail on Thursday, Jan. 9. Here's what to know.

The U.S. Postal Service is closing all post office locations and suspending regular mail services on Thursday for the National Day of Mourning honoring Carter.