Re: Leap Year..................!, leap seconds...

Peter Lancashire wrote: > Richard Thomas wrote: > > > > If 2000 were to have 30 days, surely that would make it a leap leap year > > (or should that be leap squared ? ;-) > > > > In any case, 2000 is a leap year, and February has 29 days. 1900 was > > not a leap year. For your reference, the rule is: > > > > Is the year divisible by 4 ? > > No - Not a leap year ---> END > > Yes - Is the year divisible by 100 ? > > No - It is a leap year ---> END > > Yes - Is the year divisible by 400 ? > > No - It is not a leap year > > Yes - It is a leap year. > > > > These convoluted arrangements are required because there are something > > like 365.2575 days per year, and so a slight correction is required > > every four hundred years. And even this is not completely correct! > > > > Could you imagine what would happen if we introduced a decimal (or even > > a hexidecimal / octal / binary) calendar? That would make Y2K look like > > child's play! > > > > RET > > > <snip> > We sometimes have leap-seconds but I am not aware of the rule used to > invoke them. This would be a real challenge... > > Meanwhile, those of us in the UK have a mundane and infuriating time > problem: the lack of a rule for deciding on the switch to and from > summer time (daylight savings to my readers in the USA). It is decided > by "Orders in Council". Anyone know the algorithm for this? ;-) Ain't this the last Sunday in March (02:00:00) to switch to summertime and the last sunday in October (03:00:00) to switch back ? > > -- > Peter Lancashire > Information Systems Specialist, Bayer plc > Eastern Way, Bury St Edmunds, Suffolk, IP32 7AH, UK > Tel: +44-1635-562258, Fax: +44-1635-562281 > --- > If all else fails, read the instructions AND the release notes. > All opinions are my own and not those of Bayer plc. > My Internet plumbing does not allow me to mail and post news together. > Sorry. > --- > Join Infuse, the UK Informix User Group at http://www.infuse.org.uk/ -- Helmut Leininger Bull AG / Vienna Unix Support Email: Helmut.Leininger@bull.net This opinion is mine and not necessarily that of my employer. No guarantees whatsoever.