Leading questions should be easy. But have you made the following common error, requiring that you turn one question into two?
Q. It was 2:10 p.m., is that not correct?
Q. That was a true statement?
It's that pesky negative that causes the problem. A better approach would be:
Q. It was 2:10 p.m., correct? --or,
Q. It was 2:10 p.m.?
The last example is often the best alternative. It's simple, direct, and unambiguous.