Re: Timetype

["Björn Lundin" <bjorn.lundin@swipnet.se>]

Mark Biggar wrote:


> Yes, this range allows using the expression (year mod 4 = 0) to test
> test for leap years. 

makes sense
 
> BTW taking your example date, which one do you
> mean?  There is a 11 day difference between 05-jun-1712 in England and
> its colonies and that date in most of Europe.  England didn't convert
> to the Gregorian calendar until 1752, while most of Catholic europe
> converted in the 1500's.  Russia didn't convert until the 1920's, so
> even Ada's year range can cause problems with historical dates. The
> standard writers didn't want to deal with the mess that the calendar
> is in.
> 

Hmm, thats a bit like you can't ask anyone for what time it is,
unless you are sure that there's no timezone in between...

One way of dealing with that would be to say the date is in the eye of 
the writer, so if a russin wrote 'October revolution', a swede would know
it took place in November.

/Bj�rn