As the title says: I'd like all commits I push to GitHub to appear with the timestamp of the push rather than of the commit, in the GitHub's commits tab.

I use quite a standard workflow:

```
<do some work>
git add -u
git commit -m "Message 1."
...
<do some work>
git add -u
git commit -m "Message N."
git push myrepo master

```

This makes all N commits show in GitHub, which is fine and good. But the time of the commits is shown as well, which I don't like. I would much more prefer to show only the timestamp of the last of them (or of the push).