instance Ord ZonedTime

[pweaver]

Currently uses the Generic Deriving

Would it make more sense or have the Ord instance

instance Ord ZonedTime where
    compare a b = compare (f a) (f b)
        where f t = (zonedTimeToUTC t, zonedTimeZone t)

so that ZonedTime is sorted by when the utc time rather than when it happens within the local timezone?