How do I check out what was in my git repository N days ago?

Question

I have to check out my source code from two days ago. Whenever I have to do this, I have to look up the syntax. It's not in the git-checkout page. I'd like to have a convenient Stack Overflow question to refer to so I don't have to look it up every time. If this has already been asked, please point me to the dupe. :)

How do I check out my source code in git from two (or N) days ago?

Answer 1

git checkout @{two.days.ago}