The phrase "able to determine when" is correct and usable in written English.
You can use it when discussing the capability to identify specific times or conditions in various contexts, such as decision-making or analysis.
Example: "The software is able to determine when the system is under heavy load and adjust its performance accordingly."
Alternatives: "capable of identifying when" or "able to recognize when".
"Our problem is not being able to determine when the hell the end is".
Linguists, however, have long been able to determine when languages are related, even if they sound totally unconnected.
The experts also said that they would likely be able to determine when the files were created, accessed and modified.
Employees expect to be able to determine when and how they will work, the technology they'll use, and the values their company will espouse.
By evaluating changes in beam intensity, the researchers were better able to determine when the system was actually detecting an animal.
In addition, this approach is able to determine when the expected performance of monitoring configurations is reduced due to over-instrumentation.
Companies that tag their ads and their videos with these standardized codes will also be better able to determine where, when and how the content is viewed.
Agriculture officials hope to be able to determine where, when and how a Holstein in Washington State became infected with mad cow disease as a clue to whether other animals also carry it.
Twitter says it will be able to determine where and when an ad ran on TV, as well as track those who have subsequently tweeted about the ad and the TV program that it ran against.
From this information, the guards were able to determine where and when patrols needed to be increased, where improved surveillance from watchtowers and bunkers was required, and which areas needed additional fortifications.
The more the host drinks, the less able he will be to determine when a guest is intoxicated.
