change-log-time-zone-rule
change-log-time-zone-rule is a variable defined in `add-log.el
'.Its value is
nil
- This variable is an alias for `add-log-time-zone-rule'.
Documentation:
Time zone used for calculating change log time stamps.
It takes the same format as the TZ argument of `set-time-zone-rule'.
If nil, use local time.
If t, use universal time.