Re: new Date extenstion

On 16 Feb 2003 20:17:13 +0000 Theo Spears <postmaster@terrarium.f9.co.uk> wrote: > On Sun, 2003-02-16 at 16:17, Pierre-Alain Joye wrote: > > hello, > > > > As a side note, the date range starts on 1/1/1 and ends on > > 31/12/65535. > > > > pierre > > What about BCE dates? Wouldn't it be more sensible to allow between > 31/12/-32767 to 31/12/32767 Playing with months days is completly hazardous with BC dates, even with dates lower then certain centuries, check the calendar FAQ :). This choice makes the algorithm easier to implement and faster, the structure of date/time structire too. It seems this is the way others men people choosed too for their respective langage or APIs. As far as I remember, archaeological applications do not use this structure to store dating datas in an atomic manner. Note this is an internal limit, logic tells us to do not believe the 1st january of 340 was a monday for the people who lived during this old times ;-)), regardless to the algorithm you use. The goals here were more to work a date after 2038 and before 1970. thank's for the feedbacks hth pierre