git-backdate to create a repository from a folder, creating a commit for each file backdated to its file modification date

git-backdate.ps1

Param([string] $Folder)
Write-Host 'Backdating files in folder' $Folder -ForegroundColor Green

Push-Location $Folder
git init
git commit --allow-empty -m 'Initialize repository'

Write-Host 'Looking for files: ' -NoNewLine -ForegroundColor Blue
$files = Get-ChildItem * -Recurse | ? { !$_.PSIsContainer } | sort LastWriteTime
Write-Host $files.Length -NoNewLine -ForegroundColor Yellow
Write-Host ' files found' -ForegroundColor Blue

Write-Host 'Committing files backdated to their last write time' -ForegroundColor Blue
$files | % {
    git add $_.FullName
    $date = $_.LastWriteTime.ToString('yyyy-MM-dd HH:mm:ss')
    $env:GIT_COMMITTER_DATE = $env:GIT_AUTHOR_DATE = $date
    git commit -m ('Backdating: ' + $date)
}

$env:GIT_COMMITTER_DATE = $env:GIT_AUTHOR_DATE = $null
Pop-Location
Write-Host 'Done.' -ForegroundColor Green

Can we use this to upload old projects in the backdate?

@ AbhishekSharma51 Sure, feel free to use or modify the script for your needs! See also this answer on Stack Overflow for some more details on how to use it.