# Install cctz C++ library for translating between absolute and civil times. Version 2.5 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:cctz ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install cctz ``` Evidence: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install libcctz-dev ``` Evidence: Debian stable package indexes: libcctz-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - dnf (92%): ```sh sudo dnf install cctz ``` Evidence: Fedora Rawhide package metadata: cctz from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/13ee7b80cb813542594d4235c4a0b8695435d5ecf23dd3580bc7515ae1b6180d-primary.xml.zst - Nix (92%): ```sh nix profile install nixpkgs#cctz ``` Evidence: nixpkgs package indexes: pkgs/by-name/cc/cctz/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package Facts - **Package key:** brew:cctz - **Package manager:** Homebrew - **Package manager URL:** - **Version:** 2.5 - **Source summary:** C++ library for translating between absolute and civil times - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Generated:** 2026-06-10T07:18:26+00:00 ## Executables - time_tool (cli) - time_tool (alias) ## Build Dependencies - cmake ## Install Behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux ## Freshness - Page generated: 2026-06-10 - Package-manager version: 2.5 - Local data status: ok - Upstream repository: https://github.com/google/cctz - Upstream latest detected: v2.5 (current) - info: No package-manager update timestamp was available. ## 安全说明 library-like package without higher-risk signals. - **Geiger risk:** green / low - library-like package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** cctz - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - Debian apt - libcctz-dev - 2.4+dfsg1-2: normalized package name match | Debian stable package indexes: libcctz-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Library for computing dates, times and time zones, development files | https://github.com/google/cctz - Debian apt - libcctz-doc - 2.4+dfsg1-2: normalized package name match | Debian stable package indexes: libcctz-doc from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Library for computing dates, times and time zones, documentation | https://github.com/google/cctz - Debian apt - libcctz2.4 - 2.4+dfsg1-2: normalized package name match | Debian stable package indexes: libcctz2.4 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Library for computing dates, times and time zones, shared library | https://github.com/google/cctz - Nix - cctz: normalized package name match | nixpkgs package indexes: pkgs/by-name/cc/cctz/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - libcctz-dev - 2.3+dfsg1-5build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libcctz-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Library for computing dates, times and time zones, development files | https://github.com/google/cctz - Ubuntu apt - libcctz-doc - 2.3+dfsg1-5build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libcctz-doc from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Library for computing dates, times and time zones, documentation | https://github.com/google/cctz - Ubuntu apt - libcctz2 - 2.3+dfsg1-5build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libcctz2 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Library for computing dates, times and time zones, shared library | https://github.com/google/cctz - dnf - cctz - 2.5-3.fc44: normalized package name match | Fedora Rawhide package metadata: cctz from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/13ee7b80cb813542594d4235c4a0b8695435d5ecf23dd3580bc7515ae1b6180d-primary.xml.zst | Translating between absolute and civil times using time zone rules | https://github.com/google/cctz - dnf - cctz-devel - 2.5-3.fc44: normalized package name match | Fedora Rawhide package metadata: cctz-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/13ee7b80cb813542594d4235c4a0b8695435d5ecf23dd3580bc7515ae1b6180d-primary.xml.zst | Translating between absolute and civil times using time zone rules | https://github.com/google/cctz ## Related Links - [Source-control packages](https://www.automicvault.com/zh-hans/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/zh-hans/pkg/terminal-utilities/) - 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Shared terms: c-plus-plus, cli, developer, developer-tools, plus. ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph