Comments by darrell987 (Top 2 by date)

Thanks for the reply. I know how to use FindSystemTimeZonebyID to convert local time to UTC and also converting DateTime from one time zone to another. I was just unclear of how to retrieve the time zone information for certain timezone like "Europe/Copenhagen" who have the corresponding Windows Timezone ID of "Europe_Central" which cannot be found in the "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Time Zones". Thanks again for your help.