Update-zoneinfo is a free Perl script available under GNU GPL license used for updating time zones.
One of the main benefits of update-zoneinfo is that it automates the process of fetching and compiling new zoneinfo definitions. When you run the script, it will fetch the latest zoneinfo definition from the URL you specify and compile it using zic. Then, it will install the new definition and adjust your local timezone according to the command line arguments you provided.
If you want to make sure that your timezone information is always up-to-date, you can even schedule update-zoneinfo to run automatically on a daily basis. The script can be added to your crontab, which means that it will update itself with the latest zoneinfo definition every day.
One thing that's worth noting is that update-zoneinfo is designed to be very transparent about its activity. When the script is run, it will output information about what it's doing to both stderr and syslog. That way, you can monitor the script's activity and make sure that everything is running smoothly.
Finally, if you're wondering whether update-zoneinfo will work on your system, the good news is that it currently supports Linux and Solaris. So as long as you're running one of those operating systems, you should be good to go!
Version 0.16: N/A