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

Question

The answers to How to modify existing  unpushed commits  describe a way to amend previous commit messages that haven t yet been pushed upstream   The new messages inherit the timestamps of the original commits   This seems logical  but is there a way to also re-set the times

User · Answer

I wanted to make sure that I update my code’s copyright comments at precisely midnight, and I didn’t want to risk a tiny delay with at or cron. So, I commited the code and then:

GIT_COMMITTER_DATE="Fri Jan 1 00:00:00 2021 +1000" git commit --amend --no-edit --date="Fri Jan 1 00:00:00 2021 +1000"

(Or perhaps even set the UTC offset to 0? Decisions… ) Now I can push!

Happy new year, everybody

User · Answer

git commit --amend --date  now

User · Answer

You can do an interactive rebase and choose edit for the commit whose date you would like to alter  When the rebase process stops for amending the commit you type in for instance   git commit --amend --date  Wed Feb 16 14 00 2011  0100    Afterwards you continue your interactive rebase   UPDATE  in response to the comment of studgeek   to change the commit date instead of the author date   GIT COMMITTER DATE  Wed Feb 16 14 00 2011  0100  git commit --amend   The lines above set an environment variable GIT COMMITTER DATE which is used in amend commit   Everything is tested in Git Bash

User · Answer

There are already many great answers  but when I want to change date for multiple commits in one day or in one month  I don t find a proper answer  So I create a new script for this with explaintion  hope it will help someone      bin bash    change GIT AUTHOR DATE for commit at Thu Sep 14 13 39 41 2017  0800   you can change the data match to change all commits at any date  one day or one month   you can also do the same for GIT COMMITTER DATE  git filter-branch --force --env-filter    date match   Thu  14 Sep 2017 13                    GIT AUTHOR DATE will be  1505367581  0800  Git internal format  author data  GIT AUTHOR DATE                     author data   author data                      author data   author data   0800                   author data is 1505367581       oneday    24 60 60      author data str will be  Thu  14 Sep 2017 13 39 41  0800   RFC2822 format author data str  date -R -d   author data         if     author data str     date match     then       remove one day from author data     new data sec     author data- oneday         change to git internal format based on new data sec     new data    new data sec  0800                   export GIT AUTHOR DATE   new data  fi   --tag-name-filter cat -- --branches --tags   The date will be changed   AuthorDate  Wed Sep 13 13 39 41 2017  0800

User · Answer

There are already many great answers  but when I want to change date for multiple commits in one day or in one month  I don t find a proper answer  So I create a new script for this with explaintion  hope it will help someone      bin bash    change GIT AUTHOR DATE for commit at Thu Sep 14 13 39 41 2017  0800   you can change the data match to change all commits at any date  one day or one month   you can also do the same for GIT COMMITTER DATE  git filter-branch --force --env-filter    date match   Thu  14 Sep 2017 13                    GIT AUTHOR DATE will be  1505367581  0800  Git internal format  author data  GIT AUTHOR DATE                     author data   author data                      author data   author data   0800                   author data is 1505367581       oneday    24 60 60      author data str will be  Thu  14 Sep 2017 13 39 41  0800   RFC2822 format author data str  date -R -d   author data         if     author data str     date match     then       remove one day from author data     new data sec     author data- oneday         change to git internal format based on new data sec     new data    new data sec  0800                   export GIT AUTHOR DATE   new data  fi   --tag-name-filter cat -- --branches --tags   The date will be changed   AuthorDate  Wed Sep 13 13 39 41 2017  0800

User · Answer

Edit the author date and the commit date of the last 3 commits  git rebase -i HEAD 3 --committer-date-is-author-date --exec  quot git commit --amend --no-edit --date now quot   The --exec command is appended after each line in the rebase and you can choose the author date with the --date      the committer date will be the same of author date

User · Answer

Each commit is associated with two dates  the committer date and the author date  You can view these dates with  git log --format fuller  If you want to change the author date and the committer date of the last 6 commits  you can simply use an interactive rebase   git rebase -i HEAD 6    pick c95a4b7 Modification 1 pick 1bc0b44 Modification 2 pick de19ad3 Modification 3 pick c110e7e Modification 4 pick 342256c Modification 5 pick 5108205 Modification 6    Rebase eadedca  5108205 onto eadedca  6 commands      Commands    p  pick   use commit   r  reword   use commit  but edit the commit message   e  edit   use commit  but stop for amending   s  squash   use commit  but meld into previous commit   f  fixup   like  quot squash quot   but discard this commit s log message   x  exec   run command  the rest of the line  using shell   d  drop   remove commit  For all commits where you want to change the date  replace pick by edit  or just e   then save and quit your editor  You can now amend each commit by specifying the author date and the committer date in ISO-8601 format  GIT COMMITTER DATE  quot 2017-10-08T09 51 07 quot  git commit --amend --date  quot 2017-10-08T09 51 07 quot   The first date is the commit date  the second one is the author date  Then go to the next commit with   git rebase --continue  Repeat the process until you amend all your commits  Check your progression with git status

User · Answer

Building on theosp s answer  I wrote a script called git-cdc  for change date commit  that I put in my PATH   The name is important  git-xxx anywhere in your PATH allows you to type   git xxx   here git cdc        That script is in bash  even on Windows  since Git will be calling it from its msys environment      bin bash   commit   date YYYY-mm-dd HH MM SS  commit   1  datecal   2  temp branch  temp-rebasing-branch  current branch    git rev-parse --abbrev-ref HEAD    date timestamp   date -d   datecal    s  date r   date -R -d   datecal    if    -z   commit      then     exit 0 fi  git checkout -b   temp branch    commit  GIT COMMITTER DATE   date timestamp  GIT AUTHOR DATE   date timestamp  git commit --amend --no-edit --date   date r  git checkout   current branch  git rebase  --autostash --committer-date-is-author-date   commit  --onto   temp branch  git branch -d   temp branch    With that  you can type   git cdc     2014-07-04 20 32 45    That would reset author commit date of the commit before HEAD      to the specified date   git cdc     2 days ago    That would reset author commit date of the commit before HEAD      to the same hour  but 2 days ago     Ilya Semenov mentions in the comments      For OS X you may also install GNU coreutils  brew install coreutils   add it to PATH  PATH   usr local opt coreutils libexec gnubin  PATH   and then use  2 days ago  syntax

User · Answer

If you want to get the exact date of another commit  say you rebase edited a commit and want it to have the date of the original pre-rebase version    git commit --amend --date    git show -s --format  ai a383243     This corrects the date of the HEAD commit to be exactly the date of commit a383243  include more digits if there are ambiguities   It will also pop up an editor window so you can edit the commit message   That s for the author date which is what you care for usually - see other answers for the committer date

User · Answer

Use git filter-branch with an env filter that sets GIT AUTHOR DATE and GIT COMMITTER DATE for the specific hash of the commit you re looking to fix   This will invalidate that and all future hashes   Example   If you wanted to change the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932e0  you could do so with something like this   git filter-branch --env-filter        if    GIT COMMIT   119f9ecf58069b265ab22f1f97d2b648faf932e0        then          export GIT AUTHOR DATE  Fri Jan 2 21 38 53 2009 -0800           export GIT COMMITTER DATE  Sat May 19 01 01 01 2007 -0700       fi

User · Answer

Use git filter-branch with an env filter that sets GIT AUTHOR DATE and GIT COMMITTER DATE for the specific hash of the commit you re looking to fix   This will invalidate that and all future hashes   Example   If you wanted to change the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932e0  you could do so with something like this   git filter-branch --env-filter        if    GIT COMMIT   119f9ecf58069b265ab22f1f97d2b648faf932e0        then          export GIT AUTHOR DATE  Fri Jan 2 21 38 53 2009 -0800           export GIT COMMITTER DATE  Sat May 19 01 01 01 2007 -0700       fi

User · Answer

Edit the author date and the commit date of the last 3 commits  git rebase -i HEAD 3 --committer-date-is-author-date --exec  quot git commit --amend --no-edit --date now quot   The --exec command is appended after each line in the rebase and you can choose the author date with the --date      the committer date will be the same of author date

User · Answer

Use git filter-branch with an env filter that sets GIT AUTHOR DATE and GIT COMMITTER DATE for the specific hash of the commit you re looking to fix   This will invalidate that and all future hashes   Example   If you wanted to change the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932e0  you could do so with something like this   git filter-branch --env-filter        if    GIT COMMIT   119f9ecf58069b265ab22f1f97d2b648faf932e0        then          export GIT AUTHOR DATE  Fri Jan 2 21 38 53 2009 -0800           export GIT COMMITTER DATE  Sat May 19 01 01 01 2007 -0700       fi

User · Answer

After reading all the answers I came up with a more succinct and convenient way of editing the date of multiple commits at once without the need of rebasing interactively  git rebase HEAD 4 --exec  quot git commit --amend --no-edit --date  now  quot   It changes both the committer and author dates

User · Answer

The following bash function will change the time of any commit on the current branch   Be careful not to use if you already pushed the commit or if you use the commit in another branch     rewrite commit date commit  date timestamp         Commit has to be on the current branch  and only on the current branch         Usage example      1  Set commit 0c935403 date to now        rewrite commit date 0c935403     2  Set commit 0c935403 date to 1402221655        rewrite commit date 0c935403 1402221655   rewrite commit date          local commit   1  date timestamp   2      local date temp branch  temp-rebasing-branch      local current branch    git rev-parse --abbrev-ref HEAD        if    -z   date timestamp      then         date    date -R       else         date    date -R --date    date timestamp        fi      git checkout -b   temp branch    commit      GIT COMMITTER DATE   date  git commit --amend --date   date      git checkout   current branch      git rebase   commit  --onto   temp branch      git branch -d   temp branch

User · Answer

If you want to get the exact date of another commit  say you rebase edited a commit and want it to have the date of the original pre-rebase version    git commit --amend --date    git show -s --format  ai a383243     This corrects the date of the HEAD commit to be exactly the date of commit a383243  include more digits if there are ambiguities   It will also pop up an editor window so you can edit the commit message   That s for the author date which is what you care for usually - see other answers for the committer date

User · Answer

Here is a convenient alias that changes both commit and author times of the last commit to a time accepted by date --date    alias      cd     d     date -d    1       amp  amp  shift  amp  amp  GIT COMMITTER DATE    d                 git commit --amend --date    d      Usage  git cd  lt date arg gt   Examples   git cd now    update the last commit time to current time git cd  1 hour ago     set time to 1 hour ago   Edit  Here is a more-automated version which checks that the index is clean  no uncommitted changes  and reuses the last commit message  or fails otherwise  fool-proof     alias      cd     d     date -d    1       amp  amp  shift  amp  amp            git diff-index --cached --quiet HEAD --ignore-submodules --  amp  amp            GIT COMMITTER DATE    d   git commit --amend -C HEAD --date    d                 echo  gt  amp 2  error  date change failed  index not clean

User · Answer

if it is previous last commit   git rebase  -i HEAD 2 git commit --amend --date now   if you already push to orgin and can force use    git push --force    if you can t force the push and if it is pushed  you can t change the commit

User · Answer

git commit --amend --date  now

User · Answer

The most simple way to modify the date of the last commit git commit --amend --date  quot 12 31 2020   14 00 quot

User · Answer

The following bash function will change the time of any commit on the current branch   Be careful not to use if you already pushed the commit or if you use the commit in another branch     rewrite commit date commit  date timestamp         Commit has to be on the current branch  and only on the current branch         Usage example      1  Set commit 0c935403 date to now        rewrite commit date 0c935403     2  Set commit 0c935403 date to 1402221655        rewrite commit date 0c935403 1402221655   rewrite commit date          local commit   1  date timestamp   2      local date temp branch  temp-rebasing-branch      local current branch    git rev-parse --abbrev-ref HEAD        if    -z   date timestamp      then         date    date -R       else         date    date -R --date    date timestamp        fi      git checkout -b   temp branch    commit      GIT COMMITTER DATE   date  git commit --amend --date   date      git checkout   current branch      git rebase   commit  --onto   temp branch      git branch -d   temp branch

User · Answer

A better way to handle all of these suggestions in one command is  LC ALL C GIT COMMITTER DATE    date   git commit --amend --no-edit --date    date     This will set the last commit s commit and author date to  right now

User · Answer

How to Edit Multiple Commit Dates Other answers aren t very convenient for editing several commit dates  I ve come back to this question after a few years to share a technique  To change the dates of the last 4 commits  git rebase -i HEAD 4  Edit the rebase as follows  inserting exec lines to modify dates as needed  pick 4ca564e Do something exec git commit --amend --no-edit --date  quot 1 Oct 2019 12 00 00 PDT quot  pick 1670583 Add another thing exec git commit --amend --no-edit --date  quot 2 Oct 2019 12 00 00 PDT quot  pick b54021c Add some tests exec git commit --amend --no-edit --date  quot 3 Oct 2019 12 00 00 PDT quot  pick e8f6653 Fix the broken thing exec git commit --amend --no-edit --date  quot 4 Oct 2019 12 00 00 PDT quot

User · Answer

A better way to handle all of these suggestions in one command is  LC ALL C GIT COMMITTER DATE    date   git commit --amend --no-edit --date    date     This will set the last commit s commit and author date to  right now

User · Answer

If you want to perform the accepted answer  https   stackoverflow com a 454750 72809  in standard Windows command line  you need the following command   git filter-branch -f --env-filter  if    GIT COMMIT   578e6a450ff5318981367fe1f6f2390ce60ee045    then export GIT AUTHOR DATE  2009-10-16T16 00 03 00   export GIT COMMITTER DATE  GIT AUTHOR DATE  fi    Notes    It may be possible to split the command over multiple lines  Windows supports line splitting with the carret symbol     but I didn t succeed  You can write ISO dates  saving a lot of time finding the right day-of-week and general frustration over the order of elements  If you want the Author and Committer date to be the same  you can just reference the previously set variable    Many thanks go to a blog post by Colin Svingen  Even though his code didn t work for me  it helped me find the correct solution

User · Answer

How to Edit Multiple Commit Dates Other answers aren t very convenient for editing several commit dates  I ve come back to this question after a few years to share a technique  To change the dates of the last 4 commits  git rebase -i HEAD 4  Edit the rebase as follows  inserting exec lines to modify dates as needed  pick 4ca564e Do something exec git commit --amend --no-edit --date  quot 1 Oct 2019 12 00 00 PDT quot  pick 1670583 Add another thing exec git commit --amend --no-edit --date  quot 2 Oct 2019 12 00 00 PDT quot  pick b54021c Add some tests exec git commit --amend --no-edit --date  quot 3 Oct 2019 12 00 00 PDT quot  pick e8f6653 Fix the broken thing exec git commit --amend --no-edit --date  quot 4 Oct 2019 12 00 00 PDT quot

User · Answer

I created this npm package to change date of old commits   https   github com bitriddler git-change-date  Sample Usage   npm install -g git-change-date cd  your-directory  git-change-date   You will be prompted to choose the commit you want to modify then to enter the new date   If you want to change a commit by specific hash run this git-change-date --hash  hash

User · Answer

Each commit is associated with two dates  the committer date and the author date  You can view these dates with  git log --format fuller  If you want to change the author date and the committer date of the last 6 commits  you can simply use an interactive rebase   git rebase -i HEAD 6    pick c95a4b7 Modification 1 pick 1bc0b44 Modification 2 pick de19ad3 Modification 3 pick c110e7e Modification 4 pick 342256c Modification 5 pick 5108205 Modification 6    Rebase eadedca  5108205 onto eadedca  6 commands      Commands    p  pick   use commit   r  reword   use commit  but edit the commit message   e  edit   use commit  but stop for amending   s  squash   use commit  but meld into previous commit   f  fixup   like  quot squash quot   but discard this commit s log message   x  exec   run command  the rest of the line  using shell   d  drop   remove commit  For all commits where you want to change the date  replace pick by edit  or just e   then save and quit your editor  You can now amend each commit by specifying the author date and the committer date in ISO-8601 format  GIT COMMITTER DATE  quot 2017-10-08T09 51 07 quot  git commit --amend --date  quot 2017-10-08T09 51 07 quot   The first date is the commit date  the second one is the author date  Then go to the next commit with   git rebase --continue  Repeat the process until you amend all your commits  Check your progression with git status

User · Answer

I created this npm package to change date of old commits   https   github com bitriddler git-change-date  Sample Usage   npm install -g git-change-date cd  your-directory  git-change-date   You will be prompted to choose the commit you want to modify then to enter the new date   If you want to change a commit by specific hash run this git-change-date --hash  hash

User · Answer

I wrote a script and Homebrew package for this  Super easy to install  you can find it on GitHub PotatoLabs git-redate page   Syntax   git redate -c 3   You just have to run git redate and you ll be able to edit all the dates in vim of the most recent 5 commits  there s also a -c option for how many commits you want to go back  it just defaults to 5   Let me know if you have any questions  comments  or suggestions

User · Answer

For those using Powershell  git rebase DESIRED REF  -i   commitDateString    2020-01-22T22 22 22   env GIT COMMITTER DATE    commitDateString git commit --amend --date  commitDateString  env GIT COMMITTER DATE       git rebase --continue   Credit to https   mnaoumov wordpress com 2012 09 23 git-change-date-of-commit

User · Answer

You can do an interactive rebase and choose edit for the commit whose date you would like to alter  When the rebase process stops for amending the commit you type in for instance   git commit --amend --date  Wed Feb 16 14 00 2011  0100    Afterwards you continue your interactive rebase   UPDATE  in response to the comment of studgeek   to change the commit date instead of the author date   GIT COMMITTER DATE  Wed Feb 16 14 00 2011  0100  git commit --amend   The lines above set an environment variable GIT COMMITTER DATE which is used in amend commit   Everything is tested in Git Bash

User · Answer

To change both the author date and the commit date   GIT COMMITTER DATE  Wed Sep 23 9 40 2015  0200  git commit --amend --date  Wed Sep 23 9 40 2015  0200

User · Answer

if it is previous last commit   git rebase  -i HEAD 2 git commit --amend --date now   if you already push to orgin and can force use    git push --force    if you can t force the push and if it is pushed  you can t change the commit

User · Answer

I wanted to make sure that I update my code’s copyright comments at precisely midnight, and I didn’t want to risk a tiny delay with at or cron. So, I commited the code and then:

GIT_COMMITTER_DATE="Fri Jan 1 00:00:00 2021 +1000" git commit --amend --no-edit --date="Fri Jan 1 00:00:00 2021 +1000"

(Or perhaps even set the UTC offset to 0? Decisions… ) Now I can push!

Happy new year, everybody

User · Answer

For those using Powershell  git rebase DESIRED REF  -i   commitDateString    2020-01-22T22 22 22   env GIT COMMITTER DATE    commitDateString git commit --amend --date  commitDateString  env GIT COMMITTER DATE       git rebase --continue   Credit to https   mnaoumov wordpress com 2012 09 23 git-change-date-of-commit

User · Answer

Set the date of the last commit to the current date GIT COMMITTER DATE  quot   date  quot  git commit --amend --no-edit --date  quot   date  quot   Set the date of the last commit to an arbitrary date GIT COMMITTER DATE  quot Mon 20 Aug 2018 20 19 19 BST quot  git commit --amend --no-edit --date  quot Mon 20 Aug 2018 20 19 19 BST quot   Set the date of an arbitrary commit to an arbitrary or current date Rebase to before said commit and stop for amendment   git rebase  lt commit-hash gt   -i Replace pick with e  edit  on the line with that commit  the first one  quit the editor  ESC followed by  wq in VIM  Either    GIT COMMITTER DATE  quot   date  quot  git commit --amend --no-edit --date  quot   date  quot  GIT COMMITTER DATE  quot Mon 20 Aug 2018 20 19 19 BST quot  git commit --amend --no-edit --date  quot Mon 20 Aug 2018 20 19 19 BST quot   Source  https   codewithhugo com change-the-date-of-a-git-commit

User · Answer

If commit not yet pushed then I can use something like that   git commit --amend --date   Wed Mar 25 10 05 44 2020  0300    after that git bash opens editor with the already applied date so you need just to save it by typing in the VI editor command mode   wq  and you can push it

User · Answer

Here is a convenient alias that changes both commit and author times of the last commit to a time accepted by date --date    alias      cd     d     date -d    1       amp  amp  shift  amp  amp  GIT COMMITTER DATE    d                 git commit --amend --date    d      Usage  git cd  lt date arg gt   Examples   git cd now    update the last commit time to current time git cd  1 hour ago     set time to 1 hour ago   Edit  Here is a more-automated version which checks that the index is clean  no uncommitted changes  and reuses the last commit message  or fails otherwise  fool-proof     alias      cd     d     date -d    1       amp  amp  shift  amp  amp            git diff-index --cached --quiet HEAD --ignore-submodules --  amp  amp            GIT COMMITTER DATE    d   git commit --amend -C HEAD --date    d                 echo  gt  amp 2  error  date change failed  index not clean

User · Answer

After reading all the answers I came up with a more succinct and convenient way of editing the date of multiple commits at once without the need of rebasing interactively  git rebase HEAD 4 --exec  quot git commit --amend --no-edit --date  now  quot   It changes both the committer and author dates

User · Answer

Just do git commit --amend --reset-author --no-edit  For older commits  you can do an interactive rebase and choose edit for the commit whose date you want to modify   git rebase -i  lt ref gt    Then amend the commit with --reset-author and --no-edit to change the author date to the current date   git commit --amend --reset-author --no-edit   Finally continue with your interactive rebase   git rebase --continue

User · Answer

I wrote a script and Homebrew package for this  Super easy to install  you can find it on GitHub PotatoLabs git-redate page   Syntax   git redate -c 3   You just have to run git redate and you ll be able to edit all the dates in vim of the most recent 5 commits  there s also a -c option for how many commits you want to go back  it just defaults to 5   Let me know if you have any questions  comments  or suggestions

User · Answer

To change both the author date and the commit date   GIT COMMITTER DATE  Wed Sep 23 9 40 2015  0200  git commit --amend --date  Wed Sep 23 9 40 2015  0200

User · Answer

Just do git commit --amend --reset-author --no-edit  For older commits  you can do an interactive rebase and choose edit for the commit whose date you want to modify   git rebase -i  lt ref gt    Then amend the commit with --reset-author and --no-edit to change the author date to the current date   git commit --amend --reset-author --no-edit   Finally continue with your interactive rebase   git rebase --continue

User · Answer

If commit not yet pushed then I can use something like that   git commit --amend --date   Wed Mar 25 10 05 44 2020  0300    after that git bash opens editor with the already applied date so you need just to save it by typing in the VI editor command mode   wq  and you can push it

User · Answer

If you want to perform the accepted answer  https   stackoverflow com a 454750 72809  in standard Windows command line  you need the following command   git filter-branch -f --env-filter  if    GIT COMMIT   578e6a450ff5318981367fe1f6f2390ce60ee045    then export GIT AUTHOR DATE  2009-10-16T16 00 03 00   export GIT COMMITTER DATE  GIT AUTHOR DATE  fi    Notes    It may be possible to split the command over multiple lines  Windows supports line splitting with the carret symbol     but I didn t succeed  You can write ISO dates  saving a lot of time finding the right day-of-week and general frustration over the order of elements  If you want the Author and Committer date to be the same  you can just reference the previously set variable    Many thanks go to a blog post by Colin Svingen  Even though his code didn t work for me  it helped me find the correct solution

User · Answer

Set the date of the last commit to the current date GIT COMMITTER DATE  quot   date  quot  git commit --amend --no-edit --date  quot   date  quot   Set the date of the last commit to an arbitrary date GIT COMMITTER DATE  quot Mon 20 Aug 2018 20 19 19 BST quot  git commit --amend --no-edit --date  quot Mon 20 Aug 2018 20 19 19 BST quot   Set the date of an arbitrary commit to an arbitrary or current date Rebase to before said commit and stop for amendment   git rebase  lt commit-hash gt   -i Replace pick with e  edit  on the line with that commit  the first one  quit the editor  ESC followed by  wq in VIM  Either    GIT COMMITTER DATE  quot   date  quot  git commit --amend --no-edit --date  quot   date  quot  GIT COMMITTER DATE  quot Mon 20 Aug 2018 20 19 19 BST quot  git commit --amend --no-edit --date  quot Mon 20 Aug 2018 20 19 19 BST quot   Source  https   codewithhugo com change-the-date-of-a-git-commit

User · Answer

Building on theosp s answer  I wrote a script called git-cdc  for change date commit  that I put in my PATH   The name is important  git-xxx anywhere in your PATH allows you to type   git xxx   here git cdc        That script is in bash  even on Windows  since Git will be calling it from its msys environment      bin bash   commit   date YYYY-mm-dd HH MM SS  commit   1  datecal   2  temp branch  temp-rebasing-branch  current branch    git rev-parse --abbrev-ref HEAD    date timestamp   date -d   datecal    s  date r   date -R -d   datecal    if    -z   commit      then     exit 0 fi  git checkout -b   temp branch    commit  GIT COMMITTER DATE   date timestamp  GIT AUTHOR DATE   date timestamp  git commit --amend --no-edit --date   date r  git checkout   current branch  git rebase  --autostash --committer-date-is-author-date   commit  --onto   temp branch  git branch -d   temp branch    With that  you can type   git cdc     2014-07-04 20 32 45    That would reset author commit date of the commit before HEAD      to the specified date   git cdc     2 days ago    That would reset author commit date of the commit before HEAD      to the same hour  but 2 days ago     Ilya Semenov mentions in the comments      For OS X you may also install GNU coreutils  brew install coreutils   add it to PATH  PATH   usr local opt coreutils libexec gnubin  PATH   and then use  2 days ago  syntax

User · Answer

The most simple way to modify the date of the last commit git commit --amend --date  quot 12 31 2020   14 00 quot

User · Answer

Use git filter-branch with an env filter that sets GIT AUTHOR DATE and GIT COMMITTER DATE for the specific hash of the commit you re looking to fix   This will invalidate that and all future hashes   Example   If you wanted to change the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932e0  you could do so with something like this   git filter-branch --env-filter        if    GIT COMMIT   119f9ecf58069b265ab22f1f97d2b648faf932e0        then          export GIT AUTHOR DATE  Fri Jan 2 21 38 53 2009 -0800           export GIT COMMITTER DATE  Sat May 19 01 01 01 2007 -0700       fi

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

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