Final answer:
Debbie can check when a component was last committed by using the git log command in the Git version control system or by viewing the commit history on a platform such as GitHub.
Step-by-step explanation:
If Debbie needs to check when the last time a component was committed in the repository she is working on in the United States, she can look into the version control system being used for the project. She would typically use Git, which is a distributed version control system. By using commands such as git log, she can see a commit history including timestamps of when each commit was made. If Debbie's project is hosted on a platform such as GitHub, she can also use its website to view the commit history and see when the last changes were made.