Holidays that are observed by the United States Postal Service are New Year's Day, Martin Luther King Jr. Day, President's Day, Memorial Day, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day and Christmas Day. To find holiday dates, go to the USPS Events Calendar page on its website.
The United States Postal Service is not open on observed holidays. This means that mail is not sent or delivered on that day. For people who plan to send or receive an important piece of mail, they must be sure to check the calendar for observed holidays and plan around those days. While the USPS is not closed on Christmas Eve and New Year's Eve, most post offices close at noon. However, mail is delivered on those days.
Severe weather may also cause the USPS to close. This means that post offices closes early or may not open, and all deliveries would be canceled for the day. If there is severe weather in the area, prior to traveling, people should check if the post office is open. To learn if the USPS is open, people should go to the Service Alerts page on the USPS website. Alerts are posted and updated quickly and frequently.