1.00 and later
This serves to Certify that TNA 2000 is Year 2000 Compliant.
The Year 2000 problem (Y2K) problem centres around the use of
date fields containing 2 digit dates. This becomes an issue when
data arithmetic occurs where the earlier date ( say year 99 )
is bigger than a later date ( say year 01 ). In addition
the capture of a date (via keyboard or electronic clock)
can be ambiguous if only 2 digits are used.
TNA 2000 does not store dates in this format at all. TNA 2000
stores dates as the number of days elapsed since December 28,
1800. Because of this date arithmetic is not affected by the millennium.
In fact Dec 31 1999 will be day number 72686, and Jan 1 2000 will
be day number 72687.
In addition to this while TNA 2000 may display dates in an abbreviated
format ( ie dd/mm/yy ) - all data capture is done in the full
format ( dd/mm/yyyy).
TNA 2000 does make use of the PC's system date. In this respect
the Computer itself must be Y2K compliant in order for TNA 2000
to function properly.
TNA 2000 also makes use of data supplied by external hardware clocks.
Even if these clocks supply 2 digit dates, TNA 2000 will correctly
apply the correct century to the date. This also applies to any
imports that the program may be able to accomplish from the defined
import formats ( where the import format specifies a 2 digit date). |
