Unix Time and Windows Time

re: Unix Time and Windows Time

Steve Allen — Sun, 18 Jan 2009 01:57:16 GMT

a tick is 100 ns.

Don't you mean 123.4 s after midnite?

But even so I ask, in whose reckoning were nanoseconds counted before the invention of the telescope, or of decent pendulum escapements?

Even POSIX is a fantasy, see the link I've given.

re: Unix Time and Windows Time

MikeKelly — Sun, 18 Jan 2009 04:40:07 GMT

Good point. It is 100 nanosecond intervals, not nanosecond intervals. I've updated the post.

re: Unix Time and Windows Time

Steve Allen — Sun, 18 Jan 2009 05:48:09 GMT

In 1601 Elizabeth still sat on the throne, and the Greenwich Observatory was founded by Charles II, three quarters of a century later, after the civil war, so there was no such thing as GMT, let alone UTC, by which to measure this midnite to an accuracy of two minutes. It's fantasy.

re: Unix Time and Windows Time

afriza — Wed, 13 May 2009 05:37:22 GMT

So, Is there any built-in functions to convert between Unix-time and "Windows-time" (or FILETIME)?

re: Unix Time and Windows Time

afriza — Wed, 13 May 2009 06:24:38 GMT

OK. found it myself. There are CTime's functions from MFC/ATL ( http://msdn.microsoft.com/en-us/library/b6989cds.aspx ) or the <ctime> header from SCL (Standard C++ Library, http://msdn.microsoft.com/en-us/library/w4ddyt9h.aspx )

Unix Time

Rob — Tue, 11 Aug 2009 23:24:09 GMT

gettimeofday() is a POSIX function that provides millisecond precision. (What resolution the OS supports is another matter, of course.)