{-# LANGUAGE Safe #-}

module Data.Time.Clock.Internal.UniversalTime (
    -- * Universal Time

    -- | Time as measured by the Earth.
    UniversalTime (..),
) where

import Control.DeepSeq
import Data.Data

-- | The Modified Julian Date is the day with the fraction of the day, measured from UT midnight.
-- It's used to represent UT1, which is time as measured by the earth's rotation, adjusted for various wobbles.
newtype UniversalTime = ModJulianDate
    { UniversalTime -> Rational
getModJulianDate :: Rational
    }
    deriving (UniversalTime -> UniversalTime -> Bool
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instance NFData UniversalTime where
    rnf :: UniversalTime -> ()
rnf (ModJulianDate Rational
a) = Rational -> ()
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