Question

I am having trouble understanding how the System Registry can help me convert a DateTime object into the a corresponding TimeZone. I have an example that I’ve been trying to reverse engineer but I just can’t follow the one critical step in which the UTCtime is offset depending on Daylight Savings Time.

I am using .NET 3.5 (thank god) but It’s still baffling me.

Thanks

EDIT: Additional Information: This question was for use in a WPF application environment. The code snippet I left below took the answer example a step further to get exactly what I was looking for.

Answer 1

Here is a code snippet in C# that I’m using in my WPF application. This will give you the current time (adjusted for Daylight Savings Time) for the time zone id you provide.

// _timeZoneId is the String value found in the System Registry. // You can look up the list of TimeZones on your system using this: // ReadOnlyCollection<TimeZoneInfo> current = TimeZoneInfo.GetSystemTimeZones(); // As long as your _timeZoneId string is in the registry  // the _now DateTime object will contain // the current time (adjusted for Daylight Savings Time) for that Time Zone. string _timeZoneId = 'Pacific Standard Time'; DateTime startTime = DateTime.UtcNow; TimeZoneInfo tst = TimeZoneInfo.FindSystemTimeZoneById(_timeZoneId); _now = TimeZoneInfo.ConvertTime(startTime, TimeZoneInfo.Utc, tst); 

This is the code snippit I ended up with. Thanks for the help.