I want to copy file for C# time/day control

after checking for folders that have changed "including their content" in the last 24 hours, if there are any changes, how do I copy them from one source folder to another destination folder? the code is as below but I couldn't add 24 hours :( thank you very much in advance

static void Main(string[] args)
{
    const string Src_FOLDER = @"C:\1";
    const string Dest_FOLDER = @"C:\2";
    string[] originalFiles = Directory.GetFiles(Src_FOLDER, "*", SearchOption.AllDirectories);

    Array.ForEach(originalFiles, (originalFileLocation) =>
    {
        FileInfo originalFile = new FileInfo(originalFileLocation);
        FileInfo destFile = new FileInfo(originalFileLocation.Replace(Src_FOLDER, Dest_FOLDER));

        if (destFile.Exists)
        {
            if (originalFile.Length > destFile.Length)
            {
                originalFile.CopyTo(destFile.FullName, true);
            }
        }
        else
        {
            Directory.CreateDirectory(destFile.DirectoryName);
            originalFile.CopyTo(destFile.FullName, false);
        }
    });
}