Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Holiday Closings for the NLM Reading Room

The Library will be closed the following holidays and is closed weekends. For our normal schedule, see NLM Reading Room and Services: Hours.

December 2023 - New Year's 2024 Closings

2024 Closings

*If a holiday falls on a Saturday, for most Federal employees, the preceding Friday will be treated as a holiday for pay and leave purposes. (See 5 U.S.C. 6103(b).) If a holiday falls on a Sunday, for most Federal employees, the following Monday will be treated as a holiday for pay and leave purposes. (See Section 3(a) of Executive Order 11582, February 11, 1971.) See also our Federal Holidays – "In Lieu Of" Determination Fact Sheet at https://www.opm.gov/policy-data-oversight/pay-leave/work-schedules/fact-sheets/Federal-Holidays-In-Lieu-Of-Determination.

**This holiday is designated as "Washington’s Birthday" in section 6103(a) of title 5 of the United States Code, which is the law that specifies holidays for Federal employees. Though other institutions such as state and local governments and private businesses may use other names, it is our policy to always refer to holidays by the names designated in the law.

Last Reviewed: December 13, 2023