The phrase "shorten the amount" is grammatically correct and can be used in written English.
It means to reduce or decrease the quantity or length of something. Example: In order to save money, we need to shorten the amount of time we spend on our daily commute. This will help us cut down on transportation expenses.
Congressional leaders are discussing whether to substantially shorten the amount of time people receive unemployment benefits.
He said his priority would be to shorten the amount of time it took for claimants to receive benefits.
Disney, which produced the movie, wants to shorten the amount of time between some films being released in cinemas and then coming out on DVD.
"The key question," one senior Bush administration official said in an interview last year, "is whether he gave one of his designs to the Iranians," a possibility that could significantly shorten the amount of time it would take Iran to produce a weapon.
(The existing research was done on recordings from patients with a history of heart disease). In addition, the team is modifying the algorithm to shorten the amount of data needed to make the predictions from about 10 hours' worth of EKG data to less than one.
Mr. Bloomberg also wants to amend the City Charter to change the lines of mayoral succession, so that the first deputy mayor would succeed the mayor, and to shorten the amount of time before the city holds a special election to replace a mayor.
But it breaks a cherished French pattern of progressively shortening the amount of time people spend at work.
And the rush by states to move up their caucus and primary dates has shortened the amount of time voting officials have to hire and train poll workers.
This also shortened the amount of construction time since the floors were "furniture ready" in less than the traditional 12 weeks required for standard construction.
It motivates fathers to pay more child support, encourages unmarried partners to establish paternity more quickly and shortens the amount of time that mothers stay on welfare.
Shortening the amount of time plantations spend in closed canopy conditions would likely improve habitat conditions for small mammals existing in SMZs within intensively managed pine landscapes.
