I have created a time stamp channel with LabWindows that I write to a TDMS file. The time is a double and is returned from GetCurrDateTime(&curr_time) which returns the number of seconds since midnight, January 1, 1900 . I write the time to the TDMS file as a double as well.
In Diadem 10.1, the converted time string returned from RTT looks like this:
4/27/0107 15:36:05.531 from 3386590565.531 num_seconds
Using LabWindows FormatDateTimeString() the converted time looks like this:
4/26/2007 15:36:05.531 from 3386590565.531 num_seconds
I can change the display format in the the portal from numeric to time and also in view and I still get the incorrect date information but I'm guessing changing these attributes makes a call to the RTT function.