[fpc-devel] Problem with Now() and time changed by ntpd

[Ludo Brands]

> debated). Also note that on platforms like Windows this would be a 
> unnecessary call as there the current(!) timezone bias is 
> located in a 
> shared memory area which is mapped into each process by the kernel.
> 

Apparently not everything is that transparent under windows: 
http://msdn.microsoft.com/en-us/library/windows/desktop/ms724944%28v=vs.85%2
9.aspx

"To inform Explorer that the time zone has changed, send the
WM_SETTINGCHANGE message."

Or:

http://channel9.msdn.com/coding4fun/articles/Changing-time-zones

"By itself, changing the time zone doesn't have any apparent effect except
in new processes.  In order to see the change, you need to send a system
notification message.  This notification is made by calling
SendMessageTimeout with WM_SettingChange and a parameter of "intl". "


Ludo