Bryan aka R.I.P. wrote:
On Sat, 03 Feb 2007 17:45:07 -0600, Robert Boucher
<boucher1@alumni.texas.net> wrote:
In article <1170541735.925841.194100@v33g2000cwv.googlegroups.com>,
"macdog" <bigdog128@gmail.com> wrote:
"07", the utility sets the date as 1907. Does anyone know how to set
the time to 2007 in lieu of 1907? Thanks for any help. Macdog.
The utility is setting the year to "07" and when it reads it back
it is appending the "19". Other applications may use either "19" or
"20" as the century--usually as a result of patching.
Rather late in the game, Apple defined a "window" convention for ProDOS
dates: years from 40..99 are in century "19", and years from 0..39 are
in century "20". Since it was defined so late, relatively little
software uses the convention, instead just using a constant "19"
century.
It does complicate a date compare slightly, but it would have been easy
for applications to do if they had been told before the market began to
shrink...
My Timemaster set to 2007 (I had to go back and look) using the same
utility you did. This is really strange. Sorry I can't be more help.
For some reason, I thought these cards were not Y2K compatible at all.
I know mine isn't. If you have one that set's to 2007 I would be really
curious about it. When did you get it etc... Is there any identifiable
info
on the card and disks that you could copy here for comparison?
If they store a two-digit year they should be fully "Y2Kable", since the
presumed century is a property of software, not hardware.
The original Thunderclock (and many clones) didn't store the year at
all, just the month, day, and day of week. The ProDOS clock driver used
the calendar congruence and a table of years to compute the year within
a 5 or 6 year interval (depending on whether the interval included two
or one leap years).
In that case, the year was all software.