T minus zero means out of time. This comes from a countdown convention used in by both the American military and NASA. Generally, it is used when counting down to a major event that will happen at a specific time. Mathematically, T is time, minus whatever amount of time is left until the event happens.
MPC: Music Production Center (Akai electronic musical instrument) MPC: Mario Paint Composer (computer game) MPC: Multiplayer Cheats (gaming) MPC: Mega Particle Cannon (Gundam, fiction) MPC: Morlaix Poker Club (Morlaix, France) MPC: Musica Para Camaleones (Spanish: Music for Chameleons; Truman Capote stories) MPC: Master Player Clan (gaming) MPC
PARCC, the Partnership for Assessment of Readiness for College and Careers, is a group of states that have created a standardized test that meets the universal state education standards of Common Core. The exam itself also is often referred to as the PARCC. The states that contributed to the development of PARCC were Arkansas, Colorado, Illinois, Louisiana, Maryland, Massachusetts, Mississippi, New Jersey, New Mexico, Ohio, Rhode Island, and the District of Columbia.