Re: [Boost-users] posix_time::from_ftime versus DateTime.FromFileTime
Archie14@lists.boost.org wrote:
I will appreciate any help in sorting out following issue:
There is a value dt of type long. Calling boost::posix::time::from_ftime in c++ and DateTime.FromFileTime with that value produce "slightly" different results:
dt = 128822886020000000
c++: "2009-Mar-23 13:30:02" c#: {3/23/2009 9:30:02 AM}
DateTime.FromFileTimeUtc will probably produce the same results as boost::posix::time::from_ftime. Perhaps DateTime.SpecifyKind are needed as well. Regards, Anders Dalvander
Anders Dalvander <boost <at> dalvander.com> writes:
Archie14 <at> lists.boost.org wrote:
I will appreciate any help in sorting out following issue:
There is a value dt of type long. Calling boost::posix::time::from_ftime
in
c++ and DateTime.FromFileTime with that value produce "slightly" different results:
dt = 128822886020000000
c++: "2009-Mar-23 13:30:02" c#: {3/23/2009 9:30:02 AM}
DateTime.FromFileTimeUtc will probably produce the same results as boost::posix::time::from_ftime. Perhaps DateTime.SpecifyKind are needed as well.
Regards, Anders Dalvander
Well, the value "dt" is obtained like this: Int64 tm = startdate.ToFileTime(); DateTime dt = DateTime.FromFileTime (tm); My guess is that if tm is expressed in Utc then I should get it back in Utc as well, but it does not happen - I am getting it back in EST. My question is this: suppose I have a value that holds FILETIME. My believe is that it supposed to be understood the same way in C# or boost, without any additional external knowledge of timezones etc. I can provide two test projects if necessary to demonstrate the effect
participants (3)
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Anders Dalvander -
Archie14