How can one change the timestamp of an old commit in Git?

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If there are commits on the remote branch that you don't have in your local branch, you will lose those commits. Due to the backup of your old references, you can easily go back to the state before executing the command. Then, if you already pushed your wrong commits, you need to git push --force to overwrite them.

At the same time you'd also be setting the global config which you probably meant to do anyway. Many guides online suggest amending the git author like so: git commit --amend --author This unfortunately only changes the author, and not the committer.

How do you make changes on a specific commit

By the time I decided to initialize a git for it, I decided I wanted to keep track of when I started, so I can have a gauge of the duration it took for me to develop the program, at least on whatever free off work hours I could find. Scenario: You suddenly want to change the timestamp of a commit in git to a time in the past. If you have an empty repository. The different, as explains is that the author is the person who originally wrote the work while the committer is the person who last applied the work. A word of caution though, if you decide to continue making more commits after making that commit in-the-past. Close your terminal after making the in-the-past commit or use another one. I made the mistake of making more commits in that terminal and they all used the exported value of the author and committer date, messing up my entire commit history. What about the --date switch. Good question, I initially did my back to the past commit using that switch, but upon pushing it to GitLab I realized that the date shown was not in the past, but rather at the time I made the git commit command. Since I was just starting out it was just easier for me git change author of last commit delete my git and start over. Read more on Stack Overflow on and.

I'll edit it in later if I have time. References Thanks for this write-up! But this particular answer is not the oldest answer, nor does it offer any further insight into the accepted answer. No need to get hold of that hash first. Using reset to split commits into smaller commits git reset can help you to break one commit into multiple commits too: reset your head. This includes both code snippets embedded in the card text and code that is included as a file attachment. Here's the function; put it in your. That means that they will get new commit ids and the old ones will be invalid, so if you are rewriting multiple commits you need to manually loop.