Synonym for `--date=relative`.
---date={relative,local,default,iso,rfc,short}::
+--date={relative,local,default,iso,rfc,short,raw}::
Only takes effect for dates shown in human-readable format, such
as when using "--pretty". `log.date` config variable sets a default
+
`--date=short` shows only date but not time, in `YYYY-MM-DD` format.
+
+`--date=raw` shows the date in the internal raw git format `%s %z` format.
++
`--date=default` shows timestamps in the original timezone
(either committer's or author's).