[Haskell-cafe] Serializing UTCTimes

Ertugrul Söylemez es at ertes.de
Fri Jan 20 15:26:23 CET 2012

Bas van Dijk <v.dijk.bas at gmail.com> wrote:

> However I have no idea how to serialize the DiffTime stored in an
> UTCTime:
> instance Serialize DiffTime where
>     get = ?
>     put = ?

Note that DiffTime has this weird property that there is a Real
instance, so you have a toRational function. ;)

To go the other way you have a Fractional instance, so you also have


nightmare = unsafePerformIO (getWrongWife >>= sex)
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