Hi Claudia, your type "Time" is good. Here is how you'd define the functions for adding hours: addHour :: Int -> Time -> Time addHour myHour (hour, minute) = ((hour + myHour) `mod` 24, minute) As can be seen in the first line, this function takes an integer where you put the number of hours to add, takes a certain Time and then returns an updated time. You can try that in GHCi: put the code in a file and load it in GHCi (you need to install Haskell platform: https://www.haskell.org/platform/). $ ghci my_file.hs Then you can play with your function by typing: $ addHour 5 (10, 0) (15, 0) If you want a real program, you need to add some I/O: import Data.Time main = do time <- getCurrentTime putStrLn (show time) You can compile this short program with: ghc my_file.hs Launch it with (or click on the generated executable under windows): $ ./my_file 2014-12-01 18:12:26.989883 UTC Tada! You have a clock. Good luck with Haskell, it's not always easy but very rewarding language. Corentin On Mon, Dec 1, 2014 at 4:21 PM, Claudia Weber <kaetheweber@freenet.de> wrote:

Hi guys,

I'm new to Haskell and I'm just trying out some easy functions right now, but I'm having some trouble here..

I want to display a clock

type Time = (Int, Int)

(hoursx,minutesy) x ={0,1,...,23} y={0,1,...,59} where I can add hours and minutes or set back time.

If its 23,58 for example and I want to add 35 minutes, the clock has to set to 0,33 not 24,23.

Because I'm just getting started with Haskell, I have nooo idea what to do.

Would be great if someone could help me out with this :)

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