WMI TimeWritten time date

I have a WMI query that specifies time in this format '20090219000000.000000+480'

Can someone tell me what format this is, and does .NET have any built-in functionality to work with it?

EDIT

This time value is from a sample query that I found. I don't know what time value was used to generate it. I just need to be able to convert a time value to this format.

 

This looks like a standard date time string without any separators:

'20090219000000.000000+480'

'yyyyMMddhhmmss.ffffff+480'

yyyy - The year in four digits.
MM - The numeric month. Single-digit months have a leading zero.
dd - The day of the month. Single-digit days have a leading zero.
hh - The hour in a 12-hour clock. Single-digit hours have a leading zero. (This could also be HH, which is the hour in a 24-hour clock with single-digit hours having a leading zero.)
mm - The minute. Single-digit minutes have a leading zero.
ffffff - The fraction of a second in six-digit precision.

The "+480" is most likely a timezone indicator, although not a standard one. Normally time zones are represented as hours (or hours and minutes) from UTC. This appears to probably only be minutes. As such, there is no standard format specifier.

The DateTime class in .NET is what you would use to work with this value. However, you would probably want to take the "+480" portion off before parsing the remaining string in to an actual DateTime variable. You can then adjust it to the correct timezone or perform the timezone conversion (from minutes to hours/minutes) ahead of time and change the "+480" to the correct timezone representation and then pass the whole thing to DateTime.Parse.

 

关于wmi日期的文章：

http://msdn.microsoft.com/en-us/library/aa387237%28VS.85%29.aspx

http://technet.microsoft.com/en-us/library/ee156576.aspx

http://stackoverflow.com/questions/1351483/what-format-is-this-time-value-in?rq=1