"at a specific hour" is correct and usable in written English.
It is used to describe an event or action that will occur at a particular time. Example: The meeting will take place at a specific hour, so please make sure to be there on time.
One of the gallery's leading Japanese artists, Shizuka Yokomizo, made her name by posting letters through strangers' doors in the UK, asking them to pose for a photograph in their front window at a specific hour after dark, in return for a print.
This is a significant shift and reflects two things — getting Americans to do appointment viewing (turning their TV on at a specific hour) is becoming more and more difficult, and convenience and access are driving consumer decision-making, at least in part, when it comes to news.
Life becomes so convenient, as you could set appliances in motion at a specific hour, no matter where you are.
Provide a breakfast and dinnertime meal at a specific hour everyday.
This is most likely the result of a fewer number of cows that visited the AMS at that specific hour, consequently producing a lower number of observations.
M. repandus showed significant increase in latency time after the first hour at a dose of 2000 mg/kg as shown in Table 2. Pentazocine significantly increased (P < 0.05) latency time at each specific hour.
To account for temporal variation due to different wind conditions, for each hour we derived the corresponding spatial distribution for the prevailing wind direction and wind speed at that specific hour, by means of interpolation between the eight characteristic spatial distributions.
I would use an agreed-upon amount of my time to perform tasks for them out in the world at a specific day and hour.
Every weeknight, at the oddly specific hour of 12 37 AM EST, Reggie Watts can be found on The Late Late Show with James Corden.
Subject specialist librarians in Firestone Library and elsewhere are also available, or one may chat with or text a librarian at specific hours.
