"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.

If the News Years ball is dropping in 10 minutes, one could say "The ball is dropping in T minus 10 minutes and counting!"

Therefore, "T minus zero" means that there is no time left.

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.

If the News Years ball is dropping in 10 minutes, one could say "The ball is dropping in T minus 10 minutes and counting!"

Therefore, "T minus zero" means that there is no time left.

I was working on my term paper all night for my morning class, and all the sudden I looked up at the clock and realized I was t minus zero.

by HanClinto May 11, 2004

We are at t minus zero. We have ignition and liftoff.

by pythonspam May 13, 2004

What Mission Control in the Houston Space Center never says. They stop after T Minus 1 because T Minus zero is not significant in the countdown.

by Will May 13, 2004

by Bethany Nolan May 13, 2004

by RGE May 13, 2004

by cullen May 12, 2004

There is no time left and you need to make a decision. To fuck or not to fuck. That is the question.

by JOHN May 11, 2004