Time library design proposal

[Bayley, Alistair]

> From: Keean Schupke [mailto:k.schupke at imperial.ac.uk] 
> 
> data Gregorian = Gregorian {
>     second :: Int,
>     minute :: Int,
>     hour :: Int,
>     dayOfMonth :: Int,
>     dayOfWeek :: Int,
>     weekOfYear :: Int,
>     monthOfYear :: Int,
>     Year :: Int } -- enumerations may make more sense for 
> dayOfWeek/monthOfYear


I don't like the redundancy here. dayOfWeek and weekOfYear can (and should)
be derived from the dayOfMonth+monthOfYear+year. Having to specify them in
addition to the other fields is a major PITA, and one of the reasons the
current CalendarTime library is so unsavoury (why do I need to say what day
of the week it is? pah).

Alistair.

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