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t

CI

A quick and simple world clock for the command-line using IATA airport codes.

Installation

Homebrew

brew install cv/tap/t

From source

go install github.com/cv/t/cmd/t@latest

From releases

Download the latest binary from the releases page.

Usage

$ t sfo jfk
SFO: 🕓  16:06:21 (America/Los_Angeles)
JFK: 🕖  19:06:21 (America/New_York)

Any IATA airport code can be used, and will pick the timezone of that airport.

Version

$ t --version
t v1.0.0 (commit: abc1234, built: 2024-01-01T00:00:00Z)

Shell Prompt Mode

If PS1_FORMAT is set, the output will be compact with no decorations or newline, suitable for shell prompts:

$ echo $(PS1_FORMAT=1 t sfo lon)
SFO 17:47 LON 01:47

Development

Prerequisites

  • Go 1.21 or later

Building

go build -o t ./cmd/t

Testing

# Run all tests
make test

# Run with coverage
make test-cover

# Run with race detector
make test-race

Linting

make lint

Releasing

Releases are automated via GitHub Actions. To create a new release:

git tag v1.0.0
git push origin v1.0.0

Project Structure

t/
├── .github/workflows/  # CI and release automation
│   ├── ci.yml
│   └── release.yml
├── cmd/t/              # Main application entry point
│   └── main.go
├── codes/              # IATA airport code to timezone mapping
│   └── iata.go
├── internal/clock/     # Core clock display logic
│   ├── clock.go
│   └── clock_test.go
├── .goreleaser.yml     # Release configuration
├── go.mod
├── go.sum
└── README.md

License

MIT License - see LICENSE for details.