"high amount of time" is a correct and usable phrase in written English.
You can use it when you need to describe a lengthy period of time. For example, "I spend a high amount of time studying for my exams."
Some publishers that boasted that their users spent an hour a month on their site, an unusually high amount of time, found the new system giving them credit for only 15 minutes.
The team's interim report, which was disclosed in March, found that the station would need more than 2,200 hours of space walks each year for routine maintenance - an unacceptably high amount of time for astronauts to spend outside the station in risky space walks to replace batteries and do repairs.
As already indicated in the Introduction, the applications of our UVCluster program were limited by the high amount of time needed for analyzing large networks.
Furthermore, the high amount of time spent on frequent visits to the hospital was a reason which discouraged assent.
It is important to emphasize that the survey responses indicate an inordinately high amount of time spent in viewing TV with an exposure of 2.8 hours per day.
The developed assessment method, combining the benefits of the controlled CRC environment including a relatively high amount of time spent in hypoglycaemia, with the challenge of daily life conditions, provides a standard for future CGM evaluations.
His supervisor points out that he violated the private security company's policy about using phones on the job "an unusually high amount of times".
Frequent attenders in general practice receive great attention in primary care research because they demand high amounts of time resources, manpower, technical equipment and money.
Ofcom also found that overall, those in the 16-24 agroupoup reported spending a much higher amount of time communicating - 261 minutes per day versus 146 mins for UK adults as whole.
The better results are also a product of the higher amount of time spend on video viewing by students who performed the assignment.
However, we noticed a higher amount of time allocated to sleeping at the expense of foraging, probably because ducks in our study had ad libitum access to food, in a familiar environment.
