Пакет ghc8.6.4-chronos: Информация

Chronos is a performance-oriented time library for Haskell, with a
straightforward API. The main differences between this and the
time library are: * Chronos uses machine integers where possible.
This means that time-related arithmetic should be faster, with the
drawback that the types are incapable of representing times that
are very far in the future or the past (because Chronos provides
nanosecond, rather than picosecond, resolution).