Unix time on a DOS or OS/2 computer

To: netcdfgroup@xxxxxxxxxxxxxxxx
Subject: Unix time on a DOS or OS/2 computer
From: d3e417@xxxxxxxxxxxxxxx (JC Liljegren)
Date: Fri, 2 Sep 1994 14:52:10 PDT

I have been working with netCDF files wherein time is recorded using
the Unix standard (i.e. seconds since 1-Jan-1970).  Converting this to
more familiar representations (e.g. year, month, day, etc.) is no
problem on Unix systems using the built-in routine GMTIME.

However, I would now like to read and write netCDF files on a DOS or
OS/2 computer.  These systems do not have built-ins for Unix time.

Does anyone have an algorithm (preferrably coded in FORTRAN) that will
convert between Unix time and more familiar representations?

Jim Liljegren