Moves clock to left. Also this one might suit you better: extensions.gnome.org/extension/4667/left-clock/
Note: Binary files aren't shown on the web site. To see all files, please download the extension zipfile.
Your extension also works on 40 and 41. You can just add "40", "41" to "shell-version" in metadata.json. If you need any help with your extension you can ask us on: GNOME Matrix channel: https://matrix.to/#/#extensions:gnome.org IRC Bridge: irc://irc.gimpnet.org/shell-extensions