man ctl_zoneinfo (8): perform operations on the zoneinfo database

SYNOPSIS

ctl_zoneinfo [ -C config-file ] [ -v ] -r version-string

Ctl_zoneinfo is used to perform various administrative operations on the zoneinfo database.

Ctl_zoneinfo reads its configuration options out of the imapd.conf(5) file unless specified otherwise by -C.

-C config-file: Read configuration options from config-file.
-v: Enable verbose output.
-r version-string: Rebuild the zoneinfo database based on the directory structure of configdirectory/zoneinfo. The database to be rebuilt will be in the default location of configdirectory/zoneinfo.db unless otherwise specified by the zoneinfo_db_path option in imapd.conf. The version-string should describe the source of the timezone data (e.g. "Olson 2013h") and will be used by the timezone module of httpd.