When is the US Post Office open?

the US post office is open 6 days of the week, closed on Sunday and Federal holidays ... with few exceptions-

The New York main breach is open on Sundays for half the work day...

There is No mail delivery by the US Postal Services on National Holidays.

For the 2010-2011 Year the schedule is as follows:

• Friday, January 1 - New Year's Day
• Monday, January 18 - Martin Luther King Jr's Birthday
• Monday, February 15 - Washington's Birthday (President's Day)
• Monday, May 31 - Memorial Day
• Monday, July 5 - Independence Day
• Monday, September 6 - Labor Day
• Monday, October 11 - Columbus Day
• Thursday, November 11 - Veterans Day
• Thursday, November 25 - Thanksgiving Day
• Saturday, December 25 - Christmas Day
• Saturday, January 1, 2011 - New Year's Day

For future dates, see the USPS official website: usps.com/welcome.htm