Getting date and time from NTP time servers
Several formats and protocols used by these time services. http://www.kloth.net/software/timesrv1.php
OstroSoft Winsock Component (OSWINSCK.dll): http://www.ostrosoft.com/oswinsck.asp
Winsock Component - Using with VBA: http://www.ostrosoft.com/oswinsck/oswinsck_vba.asp
SetSystemTime: SNTP Time Server Synchronization using Winsock: http://vbnet.mvps.org/index.html?code/network/winsocksynctime.htm