A small tool that detects your public IP, resolves the correct IANA timezone for that IP, and optionally applies the timezone to your operating system.

The script runs in dry-run mode by default. Use --apply to make actual changes. On Linux you may need sudo. On Windows you must run in an elevated command prompt.

• Detect public IP
• Resolve IANA timezone from IP using external APIs
• Optional fallback using Selenium and proxy6.net
• Automatic caching to avoid API rate limits
• Safe dry-run mode
• Windows timezone application via tzutil
• Linux timezone application via timedatectl

git clone cd set-time-by-ip python -m venv venv venv\Scripts\activate # Windows

or

source venv/bin/activate # Linux/macOS

pip install -r requirements.txt

Dry run:

python set_time_by_ip.py

Apply timezone:

python set_time_by_ip.py --apply

Apply without confirmation:

• set_time_by_ip.py – main script
• settings.py – configuration and mappings
• selenium_fallback.py – alternative timezone detection via proxy6.net
• requirements.txt – dependencies
• .gitignore – ignored files
• LICENSE – MIT license

• On Windows, timezone application requires an administrator shell.
• On Linux, timezone application may require sudo.
• Actual system time is not modified by this script; only timezone.