US Postal Service is independent postal government agency started in mid 19th century in US. It has emerged as one of the largest postal agency. As per latest data, employee strength has grown up to 650K and it uses over 610K vehicle to send the courier from source to destination. Agency has spread-ed its postal network exponentially and today this agency is operating across all the US states and offers very promising services at very mild cost. This agency has tied up with local postal services of other countries and providing its service outside the united state as well. Its speculated that there is no region left on a globe where this service cannot be reached. Foundation of this agency takes us to the era when British had their colonies in United State. This Agency is result of an attempt to facilitate the communication between colonies. Agency was first started to serve between two colonies later on it keeps on getting expanded because of a dire need to enhance communication system across all colonies. Now this agency is legally obliged to serve every Americans despite of their geographic location. There are ample of the reason behind the success of this Agency. One big reason for its expansion was its association with Journalist, News and political experts. Some agency like news paper, the broadcasting agency have tied up with postal agency under US defined postal legislation and have direct access to public documents, public affairs which are available to citizens of country at the lowest rate without revealing the personal identity. This agency is liable to maintain the right to personal privacy. This agency promises various health plan, retirement plan, pension scheme to its employees. USPS Holiday Hours This Agency works in time bound manner and promises very quick delivery to its customers. Employees of this Agency work very diligently and provides its service on all six days except Sunday. Agency provides its service on Sunday as well for specific packages like medicine, Amazon parcels , Express mail etc. If you like to know more about Sunday delivery ,Please read this article which gives very comprehensive details of USPS Sunday Delivery. USPS Holiday Schedule Each Year authority declares list of holidays on which service would not be provided to its customers and packages are neither accepted nor delivered during these holidays. One must consider these holiday before using this postal service to avoid the delay in delivery. USPS Holiday 2018 Find the following list of holidays declared for the Year 2018:- Monday, January 1 New Year\u2019s Day Monday, January 15 Martin Luther King Jr. birthday Monday, February 19 Washington\u2019s Birthday Monday, May 28 Memorial Day Wednesday, July 4 Independence Day Monday, September 3 Labor Day Monday, October 8 Columbus Day Monday, November 12 Veterans Day (observed) Thursday, November 22 Thanksgiving Day Tuesday, December 25 Christmas Day There are total 10 days of holiday promised each year by postal agency to its employees. These days no request would be served. some of the holidays are adjusted just to give long weekend to its employee under Uniform Monday Holiday Act. USPS Hours Today There are some holidays which falls on weekend. So to create the employee friendly environment agency adjust those holiday to either Monday or Friday to give their employee long weekend. Just like Veteran days which was falling on Sunday was shifted to Monday to increase the number of holidays for employees benefits. USPS Holiday Hours 2018 Let me explain how to utilise this information before sending out any packages. Suppose you want to send a hand watch kept in the properly packed packet to your father who is residing in other state of United State. You want this packet to be delivered on his birthday which is on 30th May. You know that service which you want to use takes exact three days to deliver this packet to your father address. Since we know that postal service has the holiday on 28th May and there is Sunday on 27th May. All employees would be on holiday for these two days and no services would be provided. In this case you can plan out to send out packet five days in advance so that it reaches to your father address on his birthday. All holidays have their own meaning and significance and celebrated by all citizens for various reasons. Some holidays are observed because of its historic event, some are observed to celebrate the religious value, some are observed to celebrate the contribution of eminent people.