Re: [Haskell-cafe] Data.Time is so weak ?!

toWeekDate meets my need, thank you! Colin Adams-3 wrote:

How about:

import Data.Time.Calendar import Data.Time.Calendar.WeekDate

main = do let (y, w, d) = toWeekDate $ addDays 150 (fromGregorian 2009 8 31) putStrLn $ show d

2009/8/31 zaxis :

...

addDays 150 (fromGregorian 2009 8 31) will work. However, how can i get its weekday from the result ?

thanks!

zaxis wrote:

...

today = fromGregorian 2009 8 31

then how to calculate the day passing 150 days ?

today + 150 doesnot work !

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