>It is possible to change the Ada standard in the forward >direction and require implementors to handle the leap year >math correctly. > >It is not possible to change the Ada standard in a uniform >and useful manner in the backward direction because of all >the diversity of how the calendar works according to the >political decisions in various jurisdictions. There are >11 days missing from 1752, depending on your religion and >citizenship. i would disagree. In the same way that we use GMT as standard for time, we should be able to come up with a time based system that underlies the various views that are needed. After all, a date that is 30,000 days ago -is- 30,000 days ago, no matter what calendar is used. 1752's interpretation could then be viewed by using a gregorian calendar package, or a julian calendar package (i presume this is where the difference is...). Dale