It's not clear how long it will take Carter's case to move through the court system.
CNN: Virginia deputy fights his firing over a Facebook 'like'
It is difficult to measure how long it will take people living in the quake zone to recover.
But the bigger question is how long it will take to solve all the challenges prisons currently face.
BBC: NEWS | UK | UK Politics | Analysis: Prison challenges ahead
As a result, people get excited to make a change without understanding how long it will take to truly institute.
The biggest uncertainty is how long it will take the investment banking business to return to its past levels of profitability.
Three years into the five-year programme, he's not saying how long it will take to turn around the stricken financial giant.
Shell says it's too early to tell how long it will take to get Mars back online, but a year is likely.
One is the payback period, or how long it will take to recoup the higher purchase price by saving on fuel.
But Ban said he couldn't estimate how long it will take to get the aid already collected for Haiti flowing freely into the country.
They have no idea how much they've been hurt, and it's impossible to say how long it will take them to recover the trust.
It shows you how long it will take to pay off your balance if you make only the monthly payment and the amount of interest.
But few other than Stephen Hawking wish to stick their necks out by predicting how long it will take (let alone lay money on it).
The only thing we are unsure about is how long it will take for the Earth system to display those atmospheric changes as climate change phenomena.
While the approval of the Flight Delays Act could ensure fewer delays, it remains unclear how long it will take to enact as the US heads into peak flying season.
More impressive is the e-reader's ability to learn your reading speed and give you information on how long it will take you to finish a chapter, or the entire book.
Next appointment feature will tell you how long it will take you to get to your next appointment, calculating time needed to travel on foot or by another means of transportation.
FORBES: Google Expected to Deliver A Tablet At Developer Fest (Live Blog)
The only question is how long it will take.
FORBES: Fed Is Killing The Recovery With Quantitative Easing
First, one of the main points is the high environmental cost and how long it will take for the project to become carbon neutral: 71 years, according to a UC Berkeley study.
FORBES: Why Does Everyone Want A Train Set And Not Everyone Wants To Build A Train?
Because these data vary depending on where you live and when the analysis is done, there is no single answer for how long it will take for your hybrid to pay off.
The 63-year-old is hoping she and her two grandchildren can get out of the cubicle apartment they share in their Wan Chai neighborhood, but she has no idea how long it will take.
The firm is also doing deals with insurers to streamline administration, providing their clients with, say, details of how much care will cost, what the state reimburses and how long it will take.
And what is more, scores of African soldiers seem to be paying the ultimate price to contain this growing threat and it is difficult to gauge how long it will take to end it all.
And what if that car, which also knows how long it will take you to get home from work, could instruct your household thermostat to crank up the heat 10 minutes before your scheduled arrival?
FORBES: Think How Much Smarter Your Car Will Be In A Few Years
It is hard to predict the extent to which new mines and production facilities will come on stream because of higher prices and so increase the supply of metals, or how long it will take for that to happen.
"In StarCraft II, the leagues aren't established yet, they're all building up -- it's going to be huge, but we don't know how long it will take, how huge it will be, whether (existing teams) will be good at the game or not, " Fields said.
The question now appears to be how deep is the wound and how long will it take to heal.
If I decide to take medications, how long will it take for my symptoms to improve?
So how profitable is the club, and how long will it take to pay of the renovation?
FORBES: Jay-Z's 40/40 Club To Recoup $10M Update Over Two Years
应用推荐