[Robert McConnell <rmcconne@xxxxxxxxxxxxx>]

At 2/23/03 12:51 PM -0800, Guy Harris wrote:
> On Sun, Feb 23, 2003 at 10:36:21AM -0600, Gerald Combs wrote:
> > According to 'date -ud "1/1/1980" +%s' there are 315532800 seconds between
> > the Unix and DOS epochs.
>
> Although that raises the question of whether the DOS epoch is local time
> or GMT.  If, as I suspect, it's local time, you'd also need to add in
> a time zone offset between local time (which you'd probably have to
> assume is local time on the machine on which you're reading the file)
> and UTC.

MS-DOS clocks are always local time. MS-Windows enforces daylight savings 
time by adjusting both the hardware and BIOS clocks twice a year. Of 
course, some applications don't pay attention to DST, so file times may 
vary by an hour depending on which half of the year you are in and what 
version you read them on.

Bob McConnell
N2SPP