United States Postal Service holidays are days on which the postal service suspends operations to honor federally recognized holidays. In 2015, there are 10 such holidays, ranging from Jan. 1, New Years Day, to Dec. 25, Christmas Day. During postal service holidays, post offices are closed, and deliveries are delayed until the next business day.
Other USPS holidays in 2015 include May 25, Memorial Day; July 4, Independence Day; Sept. 7, Labor Day; Oct. 12, Columbus Day; and Nov. 26, Thanksgiving Day.
Several postal holidays do not fall on the actual holiday but are instead observed on a nearby date. These holidays are Jan. 19, Martin Luther King, Jr.'s birthday; Feb. 16, Presidents Day; and Nov. 11, Veterans' Day. Observed holidays generally occur when the actual holiday falls on a Sunday. For example, both Martin Luther King, Jr.'s birthday and Presidents Day are observed on the following Mondays. Veterans' Day, however, is observed on a Wednesday.
On Dec. 24, Christmas Eve, and Dec. 31, New Year's Eve, the UPS still delivers mail, but many post offices and retail locations close at noon. Schedules of closures, the location of retail offices and hours of operation are available on the USPS website.