Hi，
I found a timezone related bug in the git:
1. git log 11990eba -1 --date=format:%s
commit 11990eba0be50d1ad0655ede4062b7130326c41f (HEAD -> trunk,
origin/trunk, origin/HEAD)
Author: rillig <rillig@xxxxxxxxxx>
Date: 1635604878
indent: move debugging functions to a separate section
2. git cat-file -p 11990eba
tree 5d62150f5e2bafd3db76641450ca5d902302a039
parent 892557a74bd49983fac28366b772b53c9216ca73
author rillig <rillig@xxxxxxxxxx> 1635633678 +0000
committer rillig <rillig@xxxxxxxxxx> 1635633678 +0000
indent: move debugging functions to a separate section
3. conclusion
The unix time stored in git repository not same as the git log output,
then there must be a timezone offset bug:
1635633678 - 1635604878 = 28800 = 8 hours (local timezone offset)
Best regards,
Cauchy Song
