Developers as a group would rather not think about the problems of writing code that supports world wide use. Yet, some of the most interesting problems arise here. In this talk, we show how to build a simple program that introduces .NET date, time, and calendar handling capabilities in combination with a range of interesting technologies. Specifically, we show how to write a program in .NET that uses the Internet to access the National Institute of Standard and Technologies' very accurate clock and renders the time and date in as many formats as are available for any selected .NET culture. Along the way, calendars from Hebrew and Hijri to Japanese Era and Thai Buddhist are encountered, Julian and modified Julian Days are explained, a bit of socket programming and direct operating system calls are explored, and how XML can help in managing a list of service providers.