Modifying Git commit and author date

README.md

Modifying Git commit and author date

View Git log

# Pretty format
git log --pretty=fuller

# %ci: committer date, %ai: author date (e.g. "2021-06-09 01:18:55 +0800")
git log --graph --pretty=format:'%C(auto)%h%d (%ci) (%ai) <%ce> %s'

Source: https://stackoverflow.com/a/14244466/6805520

Use custom committer/author date for new commits

1. Set env variables:

   export GIT_AUTHOR_DATE="YYYY-MM-DDThh:mm:ss±hh:mm"
   export GIT_COMMITTER_DATE="YYYY-MM-DDThh:mm:ss±hh:mm"

2. Commit as usual:

   git add .
   git commit -m "Commit message"

3. Unset env variables:

   unset GIT_AUTHOR_DATE
   unset GIT_COMMITTER_DATE

Source: https://garysferrao.github.io/git/commit/date/2015/12/01/change-git-commit-date.html

Modify committer date to use author date of past commits

Disclaimer: The following steps will modify your Git history.

1. Start interactive rebase:

   # Interactive rebase
   git rebase -i HEAD~4 # Last 4 commits

2. Add exec command below each commit:

   # Example
   pick 4ca564e Do something
   exec GIT_COMMITTER_DATE="$(exec git show -s --format=%ai)" git commit --amend --no-edit --date "$(exec git show -s --format=%ai)"
   pick 1670583 Add another thing
   exec GIT_COMMITTER_DATE="$(exec git show -s --format=%ai)" git commit --amend --no-edit --date "$(exec git show -s --format=%ai)"
   pick b54021c Add some tests
   exec GIT_COMMITTER_DATE="$(exec git show -s --format=%ai)" git commit --amend --no-edit --date "$(exec git show -s --format=%ai)"

   Source: https://stackoverflow.com/a/58622282/6805520

   Source: https://medium.com/hackernoon/change-the-date-of-a-git-commit-eeed8d2c5b9b