Change Commit Date

Bash

GIT_COMMITTER_DATE="Sun 01 Feb 1970 00:00:00 BST" git commit -m "Initial commit" --date "Sun 01 Feb 1970 00:00:00 BST"

PowerShell

$env:GIT_COMMITTER_DATE = "Sun 01 Feb 1970 00:00:00 BST"; git commit -m "Initial commit" --date "Sun 01 Feb 1970 00:00:00 BST"; Remove-Item Env:\GIT_COMMITTER_DATE