---
name: "cyrus-ctl_zoneinfo"
section: "8"
platform: "linux"
package: "cyrus-common"
version: "3.10.2-1+deb13u2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/cyrus-ctl_zoneinfo"
---

# cyrus-ctl\_zoneinfo(8)

Cyrus IMAP documentation perform operations on the zoneinfo database

## NAME

ctl\_zoneinfo - Cyrus IMAP documentation

perform operations on the zoneinfo database

## SYNOPSIS

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

## DESCRIPTION

**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)](/imapd.conf/5.md) file unless specified otherwise by* **-C***.*

## OPTIONS

- **-C config-file**

  *Use the specified configuration file config-file rather than the default [imapd.conf(5)](/imapd.conf/5.md).*

- **-v, --verbose**

  *Enable verbose output.*

- **-r version-string, --rebuild=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(5)](/imapd.conf/5.md).  The version-string should describe the* *source of the timezone data (e.g. "Olson:2020a") and will be used* *by the tzdist module of* **[httpd(8)](/httpd/8.md)***.  The version-string* *must contain a colon between the description and the version.*

- **-w file, --windows-zone-xml=file**

  *Reads Windows Zone XML file.*

## EXAMPLES

*\[NB: Examples needed\]*

## HISTORY

*This command was introduced in version 2.5*

## FILES

*/etc/imapd.conf,* *\<configdirectory\>/zoneinfo.db*

## SEE ALSO

*[imapd.conf(5)](/imapd.conf/5.md),* **[httpd(8)](/httpd/8.md)***, [master(8)](/master/8.md)*

## AUTHOR

*The Cyrus Team, Nic Bernstein (Onlight)*

## COPYRIGHT

*1993–2025, The Cyrus Team*