Unfortunately, Windows has no native support for the tzinfo database. The Windows OS family uses a proprietary, registry-based pseudo-database that doesn’t have much historical data—and even then, only on Windows Vista, 7, and 2008. Microsoft updates this data through Windows Update, so if you don’t have that feature enabled, you might show up for all your appointments an hour late during the first week of November. (j/k)

 

Individual Windows applications may have their own support, however. I’ll let you know about the 3rd-party library I use off-list.

 

http://www.inner-drive.com/

 

 

OK, I run my timezone database under windows, so, after a couple of tries, I got the code I downloaded from the TZ database site to compile under windows.

 

Now what? I looked at the HTML files and there’s no readme or anything else that looks like documentation on how to use it.