How to list any package update on specific time space?

Question

Suppose this situation:
There is a sudden problem on my Ubuntu system that was working properly. After trying various approach to solve the problem, I guess that a package update caused the problem.
I know the exact date and time of first occurrence of the problem and also know that the problem was not present just 1 hour before that time. Now, I need to know if there was any package updated in this 1 hour time space.
Is there any command that list any package updates in a specific time space?

Answer 1

Yes, you can run the following commands which will print timestamps and changes:

cat /var/log/dpkg.log

and

cat /var/log/apt/history.log

I think you are looking for the first one as that should show all changes made through dpkg and not just the manual apt-get commands run like the second one does although they are both helpful.