# Install tz with Homebrew, apk, Nix

CLI time zone visualizer. Version 0.8.0 via Homebrew; verified 2026-07-26. Also installable with nix: nix profile install nixpkgs#tz.

## Install

```sh
sudo av install brew:tz
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install tz
```

  Evidence: local Homebrew formula metadata

### Linux

- apk (92%):

```sh
sudo apk add tz
```

  Evidence: Alpine Linux edge package indexes: tz from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz

- Nix (92%):

```sh
nix profile install nixpkgs#tz
```

  Evidence: nixpkgs package indexes: pkgs/by-name/tz/tz/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## Package facts

- **Package key:** brew:tz
- **Package manager:** Homebrew
- **Version:** 0.8.0
- **Source summary:** CLI time zone visualizer
- **Homepage:** <https://github.com/oz/tz>
- **Repository:** <https://github.com/oz/tz>
- **Last updated:** 2026-07-26T03:12:24+02:00
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- tz (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 0.8.0
## Project history and usage

tz is an interactive terminal helper for comparing times across selected IANA time zones. It is part of the small but persistent Unix tradition of wrapping tzdb names in more human-friendly command-line interfaces.

### Project history

The oz/tz repository was created in January 2021. Its README presents the program as an interactive TUI for scheduling across time zones, displaying local time, UTC, and user-chosen zones.

The release history shows a fast early 2021 series through 0.6, then later releases in 2023, 2024, and 2025. The README documents a configuration file, an environment-variable workflow through `TZ_LIST`, command-line arguments, and Go source builds.

### Adoption history

The README lists Homebrew and Arch packaging and `go install`; the batch package facts add apk and Nix. This is typical adoption for a small Go terminal app that solves a daily coordination problem for distributed teams.

Its adoption depends on the IANA time zone database naming scheme: users pass zone names such as `Europe/Paris` or `US/Pacific`, and the tool renders those names into local-time comparisons.

### How it is used

Typical use is to run `tz` with no arguments for local and UTC time, pass zone names on the command line, set `TZ_LIST` for shell-level defaults, or store preferred zones in `~/.config/tz/conf.toml`.

In package-manager workflows, tz is a lightweight install for people who do not want a calendar app just to answer cross-zone scheduling questions from the terminal.

### Why package nerds care

tz matters as a small wrapper around tzdb rather than as new time-zone infrastructure. Package nerds care because it shows the value of keeping canonical zoneinfo data in the operating system while packaging focused CLI views on top.

### Timeline

- 2021-01-30: oz/tz GitHub repository created.
- 2021-03-16: v0.4 released during the early release series.
- 2023-01-16: v0.6.3 released.
- 2025-02-14: v0.8.0 released.

### Related projects

- The IANA Time Zone Database provides the zone names and rules used by tz.
- tzdiff is a related terminal tool for comparing local and remote time-zone columns.

### Sources

- <https://api.github.com/repos/oz/tz>
- <https://api.github.com/repos/oz/tz/releases>
- <https://github.com/oz/tz>
- source_facts.package-manager


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals


## Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.


## Configuration files

- Unix: ~/.config/tz/conf.toml
## Other Package-Manager Records

- Nix - tz: normalized package name match | nixpkgs package indexes: pkgs/by-name/tz/tz/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- apk - tz - 0.8.0-r14: normalized package name match | Alpine Linux edge package indexes: tz from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | interactive TUI program that displays time across a few time zones of your choosing | https://github.com/oz/tz


## Combined YAML source

View the package source record on GitHub. [combined/tz.yml](https://github.com/mxcl/pkgdb/blob/main/combined/tz.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated configuration and credential file locations
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph