strange date generated by git-format-patch

From: johan defries <johandefries@gmail.com>
Date: Feb 23, 2007, 08:55 UTC
Message-ID: <38d46eb0702230055i587bc775r9362aafeef803976@mail.gmail.com>

When I do

#git-format-patch --stdout HEAD^|head -1 | grep --color "Mon Sep 17 00:00:00 2001"

I really get a hit. "Sept 17 2001"?? It's strange, because the repository is so much younger.

Can someone explain?

Thank you.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.