How to find a files latest changed time in git
You can find a files latest changed time using the following
git log -n 1 --follow --diff-filter=MR <file>
For Example
git log -n 1 --follow --diff-filter=MR README.md
How it works
-n 1
only show 1 result--diff-filter=MR
filters only Modified and Renamed commits--follow
follows the file through any renames it has had