[MSDN Library June 1998] WM_TIMECHANGE (54.2004048582996%)

MSDN Library Visual Studio 6.0 > Platform SDK > Windows Base Services > General Library > Time > Time Reference > Time Messages

[MSDN Library April 2000] WM_TIMECHANGE (54.2004048582996%)

MSDN Library - April 2000 > Platform SDK > Management Services > Windows System Information > Time > Time Reference > Time Messages