[Haskell-cafe] Telling the time
Andrew Coppin
andrewcoppin at btinternet.com
Fri Jun 22 14:13:15 EDT 2007
Marc Weber wrote:
> On Thu, Jun 21, 2007 at 09:15:12PM +0100, Andrew Coppin wrote:
>
>> Greetings.
>>
>> Is there a standard library function anywhere which will parse a string
>> into some kind of date/time representation? And, further, is there some
>> function that will tell me how many seconds elapsed between two such times?
>>
> I know about Data.Time.*
> and System.Time ( tdSec . diffClockTimes )
>
> For parsing there is the library written by bringert:
> http://www.cs.chalmers.se/~bringert/darcs/parsedate/
>
> I don't know wether it is in the library index on the haskell.org.
> If not we should add it. I was'nt able to find it there.
>
OK, I'll try a deeper look...
>> (I see there's a giant pile of modules to do with dates and times, but I
>> can't make much sense out of them - and in at least one place, the
>>
>
> The trouble is that time processing can be complicated if you want to
> pay attention to leap seconds/ years etc. leap seconds can't be known in
> advance etc.
>
I don't care about leap seconds - and neither does the hardware clock on
the server that generates these logs. ;-) I just want to find out how
long each step took...
>> documentation on the Haskell website doesn't actually match what's
>> installed on my computer!)
>>
> That's why I'm reading the source all the time ;)
>
Oh... goodie...
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