Geo2tz

Self-Hosted

Open-source geographic coordinate to time zone converter

Overview

Geo2tz is a lightweight open-source tool that converts latitude/longitude coordinates into accurate IANA time zone identifiers. It supports single and bulk queries, making it ideal for developers integrating time zone logic into apps or systems. Deployable via Docker or as a standalone service, it uses a compact local database for fast, offline responses—no external API dependencies, enhancing privacy and reliability for self-hosted environments.

Self-Hosting Resources

Find Official Image on Docker Hub View Source & Docs

Below is a reference structure for docker-compose.yml. ⚠️ Do NOT run blindly. Replace placeholders with official values.

docker-compose.template.yml TEMPLATE


version: '3'
services:
  geo2tz:
    image: <OFFICIAL_IMAGE_NAME>:latest
    container_name: geo2tz
    ports:
      - "8080:<APP_INTERNAL_PORT>"
    volumes:
      - ./data:/app/data
    restart: unless-stopped

Key Features

Convert coordinates to IANA time zones
Bulk query capability
Docker & standalone deployment
Offline operation (local database)

Frequently Asked Questions

? Is Geo2tz hard to install?

Geo2tz is easy to install—use Docker for a one-command deployment or run it as a standalone binary. The GitHub repo provides clear instructions for both methods, suitable for users with basic server or CLI experience.

? Is Geo2tz a good alternative to Google Time Zone API?

Yes—Geo2tz is a great self-hosted alternative. It avoids API keys and usage costs, uses a local database for accuracy, and works offline. However, it lacks Google’s additional geocoding features like address lookup.

? Does Geo2tz support bulk queries?

Yes, Geo2tz supports bulk queries. You can input multiple coordinate pairs via CLI or API to get time zone results for all entries at once, ideal for batch processing tasks.

Top Alternatives

Google Time Zone API Search Google

Mapbox Time Zone API Search Google

OpenCage Geocoder (time zone feature) Search Google

Tool Info

Pricing Free/Open Source

Category Maps and Global Positioning System (GPS)

Platform Self-Hosted

Pros

⊕ Privacy-focused (no external API reliance)
⊕ Lightweight and fast response times
⊕ Easy self-hosting with Docker instructions

Cons

⊖ Limited to time zone conversion (no map visualization)
⊖ Requires basic CLI/API knowledge for integration
⊖ No default graphical user interface (GUI)