"estimated one hour" is correct and usable in written English.
You can use this phrase when you are talking about the amount of time you expect for something to take, usually quite roughly. For example: I estimate that it will take me approximately one hour to finish this assignment.
In two published studies, the exposure measure was a continuous variable estimating one hour increase in working hours with a dichotomous alcohol use outcome.
On average, Boczek estimated, one forty-person Kommando unit was able to dig thirteen linear feet of tunnel — eleven feet high and ten feet wide — every twelve hours.
Those caught -- an estimated one of every three who cross -- are interviewed and fingerprinted, then sent back to Mexico, a process that takes only a few hours.
Estimated one-way time: 3 hours.
Owners of the affected vehicles will be contacted by their area dealers, who will perform the estimated one-hour repair.
This paper investigates the effect of PPP ambiguity resolution on the accuracy of the tropospheric estimates within one hour.
Based on our experience, the time needed to mentor a novice researcher can be estimated at about one hour per week per mentor-researcher relationship.
Each lesson is estimated to take one hour each and is followed by a lesson quiz with multiple choice questions (MCQ) and extended matching questions.
Staff time required to demonstrate the intervention and monitor patients under the low use scenario was estimated to be one hour per day at the national annual average medical assistant salary of $14.61 per hour obtained from the web site of the US Bureau of Labor Statistics, increased by 26.2% for fringe benefits and an additional 44.8% for administrative overhead.
Rugby players, for example, burned an estimated 700 calories over one hour, but by their own estimation, they could only have consumed about 330 calories of chocolate and 140 calories of sports drink to compensate.
