Date Functions

[Dieter]

(01-15-2015 08:16 AM)ww63 Wrote:  why is there a forbidden range in the dates?

Simple – because these dates did not exist. The switch from the former Julian to the current Gregorian calendar occured after Thursday, 4 Oct 1582 (last Julian date) which was immediately followed by Friday, 15 Oct 1582 (first Gregorian date). So the 10 days in between do not exist by definition.

On the other hand, some countries all over the world adopted the new calendar earlier, some later, some not before the 20th century. For instance, Great Britain and its colonies did not change before 1752, so in these parts of the world the old Julian calendar still existed and there actually was a, say, 5 Oct 1582.

Dieter