USPS Holidays are those decided by the government when mail will not be delivered. These can be found listed on the USPS postal service website or at an USPS site.
Shipped (at USPS Post Office) -- December 10, 2012 Delivered -- December 20, 2012 In total, 10 days which is two to three times longer than it should have been. (USPS says delivery is in 3-5 days.)
The USPS has never delivered on Federal Holidays.
No the USPS does not deliver on any major holidays
The Flipside - 2012 Holidays was released on: USA: 21 December 2012
Home for the Holidays - 2012 was released on: USA: December 2012 (internet)
Holidays - 2012 was released on: USA: 29 April 2012 (Spring Flicks)
In the USPS by last day of January, + a day for Sunday & holidays if applicable.
Yes, the US postal service delivers on Saturdays, but not on Sundays or federal holidays.
The Dog Who Saved the Holidays - 2012 TV was released on: USA: 4 December 2012
The Flip Side - 2012 Holidays 1-6 was released on: USA: December 2012
It depends which country you are referring to. Not all holidays are universal.