I am running python script that uses logging module under cygwin on Windows 7. The date command reports correct time:

$ date
Tue, Aug 14, 2012  2:47:49 PM

However, the python script is five hours off:

2012-08-14 19:39:06,438: Done!

I don't do anything fancy when I configure logging for the script:

logging.basicConfig(format='%(asctime)-15s: %(message)s', level=logging.DEBUG)

Can someone tell me what is going on and how I can fix it?

You need to unset the environment "TZ" in your python script prior to any importing the date/time modules. It is set by cygwin but not understood by Windows:

if os.getenv("TZ"):os.unsetenv("TZ")