a pre-release version that encodes a revision identifier (such as a Git commit hash) and a timestamp from a version control system A timestamp (yyyymmddhhmmss), which is the UTC time the revision was created. In Git, this is the commit time, not the author time.
git --no-pager log --format="%cd-%H" -1 --date=format:"%Y%m%d%H%M%S"
git describe --tags --abbrev=0